xref: /freebsd/sbin/camcontrol/camcontrol.8 (revision 06c3fb27)
1.\"
2.\" Copyright (c) 1998, 1999, 2000, 2002, 2005, 2006, 2007 Kenneth D. Merry.
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright
9.\"    notice, this list of conditions and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\"    notice, this list of conditions and the following disclaimer in the
12.\"    documentation and/or other materials provided with the distribution.
13.\" 3. The name of the author may not be used to endorse or promote products
14.\"    derived from this software without specific prior written permission.
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26.\" SUCH DAMAGE.
27.\"
28.Dd June 1, 2023
29.Dt CAMCONTROL 8
30.Os
31.Sh NAME
32.Nm camcontrol
33.Nd CAM control program
34.Sh SYNOPSIS
35.Nm
36.Aq Ar command
37.Op device id
38.Op generic args
39.Op command args
40.Nm
41.Ic devlist
42.Op Fl b
43.Op Fl v
44.Nm
45.Ic periphlist
46.Op device id
47.Op Fl n Ar dev_name
48.Op Fl u Ar unit_number
49.Nm
50.Ic tur
51.Op device id
52.Op generic args
53.Nm
54.Ic inquiry
55.Op device id
56.Op generic args
57.Op Fl D
58.Op Fl S
59.Op Fl R
60.Nm
61.Ic identify
62.Op device id
63.Op generic args
64.Op Fl v
65.Nm
66.Ic reportluns
67.Op device id
68.Op generic args
69.Op Fl c
70.Op Fl l
71.Op Fl r Ar reporttype
72.Nm
73.Ic readcap
74.Op device id
75.Op generic args
76.Op Fl b
77.Op Fl h
78.Op Fl H
79.Op Fl l
80.Op Fl N
81.Op Fl q
82.Op Fl s
83.Nm
84.Ic start
85.Op device id
86.Op generic args
87.Nm
88.Ic stop
89.Op device id
90.Op generic args
91.Nm
92.Ic load
93.Op device id
94.Op generic args
95.Nm
96.Ic eject
97.Op device id
98.Op generic args
99.Nm
100.Ic reprobe
101.Op device id
102.Nm
103.Ic rescan
104.Aq all | device id | bus Ns Op :target:lun
105.Nm
106.Ic reset
107.Aq all | device id | bus Ns Op :target:lun
108.Nm
109.Ic defects
110.Op device id
111.Op generic args
112.Aq Fl f Ar format
113.Op Fl P
114.Op Fl G
115.Op Fl q
116.Op Fl s
117.Op Fl S Ar offset
118.Op Fl X
119.Nm
120.Ic modepage
121.Op device id
122.Op generic args
123.Op Fl 6
124.Aq Fl m Ar page[,subpage] | Fl l
125.Op Fl P Ar pgctl
126.Op Fl D
127.Op Fl L
128.Op Fl b | Fl e
129.Op Fl d
130.Nm
131.Ic cmd
132.Op device id
133.Op generic args
134.Aq Fl a Ar cmd Op args
135.Aq Fl c Ar cmd Op args
136.Op Fl d
137.Op Fl f
138.Op Fl i Ar len Ar fmt
139.Bk -words
140.Op Fl o Ar len Ar fmt Op args
141.Op Fl r Ar fmt
142.Ek
143.Nm
144.Ic smpcmd
145.Op device id
146.Op generic args
147.Aq Fl r Ar len Ar fmt Op args
148.Aq Fl R Ar len Ar fmt Op args
149.Nm
150.Ic smprg
151.Op device id
152.Op generic args
153.Op Fl l
154.Nm
155.Ic smppc
156.Op device id
157.Op generic args
158.Aq Fl p Ar phy
159.Op Fl l
160.Op Fl o Ar operation
161.Op Fl d Ar name
162.Op Fl m Ar rate
163.Op Fl M Ar rate
164.Op Fl T Ar pp_timeout
165.Op Fl a Ar enable|disable
166.Op Fl A Ar enable|disable
167.Op Fl s Ar enable|disable
168.Op Fl S Ar enable|disable
169.Nm
170.Ic smpphylist
171.Op device id
172.Op generic args
173.Op Fl l
174.Op Fl q
175.Nm
176.Ic smpmaninfo
177.Op device id
178.Op generic args
179.Op Fl l
180.Nm
181.Ic debug
182.Op Fl I
183.Op Fl P
184.Op Fl T
185.Op Fl S
186.Op Fl X
187.Op Fl c
188.Op Fl p
189.Aq all | off | device id | bus Ns Op :target Ns Op :lun
190.Nm
191.Ic tags
192.Op device id
193.Op generic args
194.Op Fl N Ar tags
195.Op Fl q
196.Op Fl v
197.Nm
198.Ic negotiate
199.Op device id
200.Op generic args
201.Op Fl c
202.Op Fl D Ar enable|disable
203.Op Fl M Ar mode
204.Op Fl O Ar offset
205.Op Fl q
206.Op Fl R Ar syncrate
207.Op Fl T Ar enable|disable
208.Op Fl U
209.Op Fl W Ar bus_width
210.Op Fl v
211.Nm
212.Ic format
213.Op device id
214.Op generic args
215.Op Fl q
216.Op Fl r
217.Op Fl w
218.Op Fl y
219.Nm
220.Ic sanitize
221.Op device id
222.Op generic args
223.Aq Fl a Ar overwrite | block | crypto | exitfailure
224.Op Fl c Ar passes
225.Op Fl I
226.Op Fl P Ar pattern
227.Op Fl q
228.Op Fl U
229.Op Fl r
230.Op Fl w
231.Op Fl y
232.Nm
233.Ic idle
234.Op device id
235.Op generic args
236.Op Fl t Ar time
237.Nm
238.Ic standby
239.Op device id
240.Op generic args
241.Op Fl t Ar time
242.Nm
243.Ic sleep
244.Op device id
245.Op generic args
246.Nm
247.Ic powermode
248.Op device id
249.Op generic args
250.Nm
251.Ic apm
252.Op device id
253.Op generic args
254.Op Fl l Ar level
255.Nm
256.Ic aam
257.Op device id
258.Op generic args
259.Op Fl l Ar level
260.Nm
261.Ic fwdownload
262.Op device id
263.Op generic args
264.Aq Fl f Ar fw_image
265.Op Fl q
266.Op Fl s
267.Op Fl y
268.Nm
269.Ic security
270.Op device id
271.Op generic args
272.Op Fl d Ar pwd
273.Op Fl e Ar pwd
274.Op Fl f
275.Op Fl h Ar pwd
276.Op Fl k Ar pwd
277.Op Fl l Ar high|maximum
278.Op Fl q
279.Op Fl s Ar pwd
280.Op Fl T Ar timeout
281.Op Fl U Ar user|master
282.Op Fl y
283.Nm
284.Ic hpa
285.Op device id
286.Op generic args
287.Op Fl f
288.Op Fl l
289.Op Fl P
290.Op Fl p Ar pwd
291.Op Fl q
292.Op Fl s Ar max_sectors
293.Op Fl U Ar pwd
294.Op Fl y
295.Nm
296.Ic ama
297.Op device id
298.Op generic args
299.Op Fl f
300.Op Fl q
301.Op Fl s Ar max_sectors
302.Nm
303.Ic persist
304.Op device id
305.Op generic args
306.Aq Fl i Ar action | Fl o Ar action
307.Op Fl a
308.Op Fl I Ar trans_id
309.Op Fl k Ar key
310.Op Fl K Ar sa_key
311.Op Fl p
312.Op Fl R Ar rel_tgt_port
313.Op Fl s Ar scope
314.Op Fl S
315.Op Fl T Ar res_type
316.Op Fl U
317.Nm
318.Ic attrib
319.Op device id
320.Op generic args
321.Aq Fl r Ar action | Fl w Ar attrib
322.Op Fl a Ar attr_num
323.Op Fl c
324.Op Fl e Ar elem_addr
325.Op Fl F Ar form1,form2
326.Op Fl p Ar part
327.Op Fl s Ar start_addr
328.Op Fl T Ar elem_type
329.Op Fl V Ar lv_num
330.Nm
331.Ic opcodes
332.Op device id
333.Op generic args
334.Op Fl o Ar opcode
335.Op Fl s Ar service_action
336.Op Fl N
337.Op Fl T
338.Nm
339.Ic zone
340.Aq Fl c Ar cmd
341.Op Fl a
342.Op Fl l Ar lba
343.Op Fl o Ar rep_opts
344.Op Fl P Ar print_opts
345.Nm
346.Ic epc
347.Aq Fl c Ar cmd
348.Op Fl d
349.Op Fl D
350.Op Fl e
351.Op Fl H
352.Op Fl p Ar power_cond
353.Op Fl P
354.Op Fl r Ar restore_src
355.Op Fl s
356.Op Fl S Ar power_src
357.Op Fl T Ar timer
358.Nm
359.Ic timestamp
360.Op device id
361.Op generic args
362.Ao Fl r Oo Ns Fl f Ar format | Fl m | Fl U Oc | Fl s Ao Fl f Ar format Fl T Ar time | Fl U Ac Ac
363.Nm
364.Ic devtype
365.Op device id
366.Nm
367.Ic depop
368.Op device id
369.Op generic args
370.Ao Fl l | Fl d | Fl r Ac
371.Op Fl e Ar elem
372.Op Fl c Ar capacity
373.Nm
374.Ic help
375.Sh DESCRIPTION
376The
377.Nm
378utility allows users to access and control the
379.Fx
380CAM subsystem described in
381.Xr cam 4 .
382.Pp
383The
384.Nm
385utility
386can cause a loss of data and/or system crashes if used improperly.
387Even
388expert users are encouraged to exercise caution when using this command.
389Novice users should stay away from this utility.
390.Pp
391The
392.Nm
393utility has a number of primary functions, many of which support an optional
394device identifier.
395A device identifier can take one of three forms:
396.Bl -tag -width 14n
397.It deviceUNIT
398Specify a device name and unit number combination, like "da5" or "cd3".
399.It bus:target
400Specify a bus number and target id.
401The bus number can be determined from
402the output of
403.Dq camcontrol devlist .
404The lun defaults to 0.
405.It bus:target:lun
406Specify the bus, target and lun for a device.
407(e.g.\& 1:2:0)
408.El
409.Pp
410The device identifier, if it is specified,
411.Em must
412come immediately after the function name, and before any generic or
413function-specific arguments.
414Note that the
415.Fl n
416and
417.Fl u
418arguments described below will override any device name or unit number
419specified beforehand.
420The
421.Fl n
422and
423.Fl u
424arguments will
425.Em not
426override a specified bus:target or bus:target:lun, however.
427.Pp
428Most of the
429.Nm
430primary functions support these generic arguments:
431.Bl -tag -width 14n
432.It Fl C Ar count
433SCSI command retry count.
434In order for this to work, error recovery
435.Pq Fl E
436must be turned on.
437.It Fl E
438Instruct the kernel to perform generic SCSI error recovery for the given
439command.
440This is needed in order for the retry count
441.Pq Fl C
442to be honored.
443Other than retrying commands, the generic error recovery in
444the code will generally attempt to spin up drives that are not spinning.
445It may take some other actions, depending upon the sense code returned from
446the command.
447.It Fl n Ar dev_name
448Specify the device type to operate on, e.g.\& "da", "cd".
449.It Fl Q Ar task_attr
450.Tn SCSI
451task attribute for the command, if it is a
452.Tn SCSI
453command.
454This may be ordered, simple, head, or aca.
455In most cases this is not needed.
456The default is simple, which works with all
457.Tn SCSI
458devices.
459The task attribute may also be specified numerically.
460.It Fl t Ar timeout
461SCSI command timeout in seconds.
462This overrides the default timeout for
463any given command.
464.It Fl u Ar unit_number
465Specify the device unit number, e.g.\& "1", "5".
466.It Fl v
467Be verbose, print out sense information for failed SCSI commands.
468.El
469.Pp
470Primary command functions:
471.Bl -tag -width periphlist
472.It Ic devlist
473List all physical devices (logical units) attached to the CAM subsystem.
474This also includes a list of peripheral drivers attached to each device.
475With the
476.Fl v
477argument, SCSI bus number, adapter name and unit numbers are printed as
478well.
479On the other hand, with the
480.Fl b
481argument, only the bus adapter, and unit information will be printed, and
482device information will be omitted.
483.It Ic periphlist
484List all peripheral drivers attached to a given physical device (logical
485unit).
486.It Ic tur
487Send the SCSI test unit ready (0x00) command to the given device.
488The
489.Nm
490utility will report whether the device is ready or not.
491.It Ic inquiry
492Send a SCSI inquiry command (0x12) to a device.
493By default,
494.Nm
495will print out the standard inquiry data, device serial number, and
496transfer rate information.
497The user can specify that only certain types of
498inquiry data be printed:
499.Bl -tag -width 4n
500.It Fl D
501Get the standard inquiry data.
502.It Fl S
503Print out the serial number.
504If this flag is the only one specified,
505.Nm
506will not print out "Serial Number" before the value returned by the drive.
507This is to aid in script writing.
508.It Fl R
509Print out transfer rate information.
510.El
511.It Ic identify
512Send a ATA identify command (0xec) to a device.
513.It Ic reportluns
514Send the SCSI REPORT LUNS (0xA0) command to the given device.
515By default,
516.Nm
517will print out the list of logical units (LUNs) supported by the target device.
518There are a couple of options to modify the output:
519.Bl -tag -width 14n
520.It Fl c
521Just print out a count of LUNs, not the actual LUN numbers.
522.It Fl l
523Just print out the LUNs, and do not print out the count.
524.It Fl r Ar reporttype
525Specify the type of report to request from the target:
526.Bl -tag -width 012345678
527.It default
528Return the default report.
529This is the
530.Nm
531default.
532Most targets will support this report if they support the REPORT LUNS
533command.
534.It wellknown
535Return only well known LUNs.
536.It all
537Return all available LUNs.
538.El
539.El
540.Pp
541.Nm
542will try to print out LUN numbers in a reasonable format.
543It can understand the peripheral, flat, LUN and extended LUN formats.
544.It Ic readcap
545Send the SCSI READ CAPACITY command to the given device and display
546the results.
547If the device is larger than 2TB, the SCSI READ CAPACITY (16) service
548action will be sent to obtain the full size of the device.
549By default,
550.Nm
551will print out the last logical block of the device, and the blocksize of
552the device in bytes.
553To modify the output format, use the following options:
554.Bl -tag -width 5n
555.It Fl b
556Just print out the blocksize, not the last block or device size.
557This cannot be used with
558.Fl N
559or
560.Fl s .
561.It Fl h
562Print out the device size in human readable (base 2, 1K == 1024) format.
563This implies
564.Fl N
565and cannot be used with
566.Fl q
567or
568.Fl b .
569.It Fl H
570Print out the device size in human readable (base 10, 1K == 1000) format.
571.It Fl l
572Skip sending the SCSI READ CAPACITY (10) command.
573Send only the SCSI READ CAPACITY (16) service action and report
574its results.
575When the two do not match, a quirk is needed to resolve the ambiguity.
576.It Fl N
577Print out the number of blocks in the device instead of the last logical
578block.
579.It Fl q
580Quiet, print out the numbers only (separated by a comma if
581.Fl b
582or
583.Fl s
584are not specified).
585.It Fl s
586Print out the last logical block or the size of the device only, and omit
587the blocksize.
588.El
589.Pp
590Note that this command only displays the information, it does not update
591the kernel data structures.
592Use the
593.Nm
594reprobe subcommand to do that.
595.It Ic start
596Send the SCSI Start/Stop Unit (0x1B) command to the given device with the
597start bit set.
598.It Ic stop
599Send the SCSI Start/Stop Unit (0x1B) command to the given device with the
600start bit cleared.
601.It Ic load
602Send the SCSI Start/Stop Unit (0x1B) command to the given device with the
603start bit set and the load/eject bit set.
604.It Ic eject
605Send the SCSI Start/Stop Unit (0x1B) command to the given device with the
606start bit cleared and the load/eject bit set.
607.It Ic rescan
608Tell the kernel to scan all buses in the system (with the
609.Ar all
610argument), the given bus (XPT_SCAN_BUS), bus:target:lun or device
611(XPT_SCAN_LUN) for new devices or devices that have gone away.
612The user
613may specify a scan of all buses, a single bus, or a lun.
614Scanning all luns
615on a target is not supported.
616.Pp
617If a device is specified by peripheral name and unit number, for instance
618da4, it may only be rescanned if that device currently exists in the CAM EDT
619(Existing Device Table).
620If the device is no longer there (see
621.Nm
622devlist ),
623you must use the bus:target:lun form to rescan it.
624.It Ic reprobe
625Tell the kernel to refresh the information about the device and
626notify the upper layer,
627.Xr GEOM 4 .
628This includes sending the SCSI READ CAPACITY command and updating
629the disk size visible to the rest of the system.
630.It Ic reset
631Tell the kernel to reset all buses in the system (with the
632.Ar all
633argument), the given bus (XPT_RESET_BUS) by issuing a SCSI bus
634reset for that bus, or to reset the given bus:target:lun or device
635(XPT_RESET_DEV), typically by issuing a BUS DEVICE RESET message after
636connecting to that device.
637Note that this can have a destructive impact
638on the system.
639.It Ic defects
640Send the
641.Tn SCSI
642READ DEFECT DATA (10) command (0x37) or the
643.Tn SCSI
644READ DEFECT DATA (12) command (0xB7) to the given device, and
645print out any combination of: the total number of defects, the primary
646defect list (PLIST), and the grown defect list (GLIST).
647.Bl -tag -width 11n
648.It Fl f Ar format
649Specify the requested format of the defect list.
650The format argument is
651required.
652Most drives support the physical sector format.
653Some drives
654support the logical block format.
655Many drives, if they do not support the
656requested format, return the data in an alternate format, along with sense
657information indicating that the requested data format is not supported.
658The
659.Nm
660utility
661attempts to detect this, and print out whatever format the drive returns.
662If the drive uses a non-standard sense code to report that it does not
663support the requested format,
664.Nm
665will probably see the error as a failure to complete the request.
666.Pp
667The format options are:
668.Bl -tag -width 9n
669.It block
670Print out the list as logical blocks.
671This is limited to 32-bit block sizes, and isn't supported by many modern
672drives.
673.It longblock
674Print out the list as logical blocks.
675This option uses a 64-bit block size.
676.It bfi
677Print out the list in bytes from index format.
678.It extbfi
679Print out the list in extended bytes from index format.
680The extended format allows for ranges of blocks to be printed.
681.It phys
682Print out the list in physical sector format.
683Most drives support this format.
684.It extphys
685Print out the list in extended physical sector format.
686The extended format allows for ranges of blocks to be printed.
687.El
688.It Fl G
689Print out the grown defect list.
690This is a list of bad blocks that have
691been remapped since the disk left the factory.
692.It Fl P
693Print out the primary defect list.
694This is the list of defects that were present in the factory.
695.It Fl q
696When printing status information with
697.Fl s ,
698only print the number of defects.
699.It Fl s
700Just print the number of defects, not the list of defects.
701.It Fl S Ar offset
702Specify the starting offset into the defect list.
703This implies using the
704.Tn SCSI
705READ DEFECT DATA (12) command, as the 10 byte version of the command
706doesn't support the address descriptor index field.
707Not all drives support the 12 byte command, and some drives that support
708the 12 byte command don't support the address descriptor index field.
709.It Fl X
710Print out defects in hexadecimal (base 16) form instead of base 10 form.
711.El
712.Pp
713If neither
714.Fl P
715nor
716.Fl G
717is specified,
718.Nm
719will print out the number of defects given in the READ DEFECT DATA header
720returned from the drive.
721Some drives will report 0 defects if neither the primary or grown defect
722lists are requested.
723.It Ic modepage
724Allows the user to display and optionally edit a SCSI mode page.
725The mode
726page formats are located in
727.Pa /usr/share/misc/scsi_modes .
728This can be overridden by specifying a different file in the
729.Ev SCSI_MODES
730environment variable.
731The
732.Ic modepage
733command takes several arguments:
734.Bl -tag -width 12n
735.It Fl 6
736Use 6 byte MODE commands instead of default 10 byte.
737Old devices may not support 10 byte MODE commands, while new devices may
738not be able to report all mode pages with 6 byte commands.
739If not specified,
740.Nm
741starts with 10 byte commands and falls back to 6 byte on error.
742.It Fl d
743Disable block descriptors for mode sense.
744.It Fl D
745Display/edit block descriptors instead of mode page.
746.It Fl L
747Use long LBA block descriptors.
748Allows number of LBAs bigger then 2^^32.
749.It Fl b
750Displays mode page data in binary format.
751.It Fl e
752This flag allows the user to edit values in the mode page.
753The user may
754either edit mode page values with the text editor pointed to by his
755.Ev EDITOR
756environment variable, or supply mode page values via standard input, using
757the same format that
758.Nm
759uses to display mode page values.
760The editor will be invoked if
761.Nm
762detects that standard input is terminal.
763.It Fl l
764Lists all available mode pages.
765If specified more then once, also lists subpages.
766.It Fl m Ar page[,subpage]
767This specifies the number of the mode page and optionally subpage the user
768would like to view and/or edit.
769This argument is mandatory unless
770.Fl l
771is specified.
772.It Fl P Ar pgctl
773This allows the user to specify the page control field.
774Possible values are:
775.Bl -tag -width xxx -compact
776.It 0
777Current values
778.It 1
779Changeable values
780.It 2
781Default values
782.It 3
783Saved values
784.El
785.El
786.It Ic cmd
787Allows the user to send an arbitrary ATA or SCSI CDB to any device.
788The
789.Ic cmd
790function requires the
791.Fl c
792argument to specify SCSI CDB or the
793.Fl a
794argument to specify ATA Command Block registers values.
795Other arguments are optional, depending on
796the command type.
797The command and data specification syntax is documented
798in
799.Xr cam_cdbparse 3 .
800NOTE: If the CDB specified causes data to be transferred to or from the
801SCSI device in question, you MUST specify either
802.Fl i
803or
804.Fl o .
805.Bl -tag -width 17n
806.It Fl a Ar cmd Op args
807This specifies the content of 12 ATA Command Block registers (command,
808features, lba_low, lba_mid, lba_high, device, lba_low_exp, lba_mid_exp.
809lba_high_exp, features_exp, sector_count, sector_count_exp).
810.It Fl c Ar cmd Op args
811This specifies the SCSI CDB.
812SCSI CDBs may be 6, 10, 12 or 16 bytes.
813.It Fl d
814Specifies DMA protocol to be used for ATA command.
815.It Fl f
816Specifies FPDMA (NCQ) protocol to be used for ATA command.
817.It Fl i Ar len Ar fmt
818This specifies the amount of data to read, and how it should be displayed.
819If the format is
820.Sq - ,
821.Ar len
822bytes of data will be read from the device and written to standard output.
823.It Fl o Ar len Ar fmt Op args
824This specifies the amount of data to be written to a device, and the data
825that is to be written.
826If the format is
827.Sq - ,
828.Ar len
829bytes of data will be read from standard input and written to the device.
830.It Fl r Ar fmt
831This specifies that 11 result ATA Command Block registers should be displayed
832(status, error, lba_low, lba_mid, lba_high, device, lba_low_exp, lba_mid_exp,
833lba_high_exp, sector_count, sector_count_exp), and how.
834If the format is
835.Sq - ,
83611 result registers will be written to standard output in hex.
837.El
838.It Ic smpcmd
839Allows the user to send an arbitrary Serial
840Management Protocol (SMP) command to a device.
841The
842.Ic smpcmd
843function requires the
844.Fl r
845argument to specify the SMP request to be sent, and the
846.Fl R
847argument to specify the format of the SMP response.
848The syntax for the SMP request and response arguments is documented in
849.Xr cam_cdbparse 3 .
850.Pp
851Note that SAS adapters that support SMP passthrough (at least the currently
852known adapters) do not accept CRC bytes from the user in the request and do
853not pass CRC bytes back to the user in the response.
854Therefore users should not include the CRC bytes in the length of the
855request and not expect CRC bytes to be returned in the response.
856.Bl -tag -width 17n
857.It Fl r Ar len Ar fmt Op args
858This specifies the size of the SMP request, without the CRC bytes, and the
859SMP request format.
860If the format is
861.Sq - ,
862.Ar len
863bytes of data will be read from standard input and written as the SMP
864request.
865.It Fl R Ar len Ar fmt Op args
866This specifies the size of the buffer allocated for the SMP response, and
867the SMP response format.
868If the format is
869.Sq - ,
870.Ar len
871bytes of data will be allocated for the response and the response will be
872written to standard output.
873.El
874.It Ic smprg
875Allows the user to send the Serial Management Protocol (SMP) Report General
876command to a device.
877.Nm
878will display the data returned by the Report General command.
879If the SMP target supports the long response format, the additional data
880will be requested and displayed automatically.
881.Bl -tag -width 8n
882.It Fl l
883Request the long response format only.
884Not all SMP targets support the long response format.
885This option causes
886.Nm
887to skip sending the initial report general request without the long bit set
888and only issue a report general request with the long bit set.
889.El
890.It Ic smppc
891Allows the user to issue the Serial Management Protocol (SMP) PHY Control
892command to a device.
893This function should be used with some caution, as it can render devices
894inaccessible, and could potentially cause data corruption as well.
895The
896.Fl p
897argument is required to specify the PHY to operate on.
898.Bl -tag -width 17n
899.It Fl p Ar phy
900Specify the PHY to operate on.
901This argument is required.
902.It Fl l
903Request the long request/response format.
904Not all SMP targets support the long response format.
905For the PHY Control command, this currently only affects whether the
906request length is set to a value other than 0.
907.It Fl o Ar operation
908Specify a PHY control operation.
909Only one
910.Fl o
911operation may be specified.
912The operation may be specified numerically (in decimal, hexadecimal, or octal)
913or one of the following operation names may be specified:
914.Bl -tag -width 16n
915.It nop
916No operation.
917It is not necessary to specify this argument.
918.It linkreset
919Send the LINK RESET command to the phy.
920.It hardreset
921Send the HARD RESET command to the phy.
922.It disable
923Send the DISABLE command to the phy.
924Note that the LINK RESET or HARD RESET commands should re-enable the phy.
925.It clearerrlog
926Send the CLEAR ERROR LOG command.
927This clears the error log counters for the specified phy.
928.It clearaffiliation
929Send the CLEAR AFFILIATION command.
930This clears the affiliation from the STP initiator port with the same SAS
931address as the SMP initiator that requests the clear operation.
932.It sataportsel
933Send the TRANSMIT SATA PORT SELECTION SIGNAL command to the phy.
934This will cause a SATA port selector to use the given phy as its active phy
935and make the other phy inactive.
936.It clearitnl
937Send the CLEAR STP I_T NEXUS LOSS command to the PHY.
938.It setdevname
939Send the SET ATTACHED DEVICE NAME command to the PHY.
940This requires the
941.Fl d
942argument to specify the device name.
943.El
944.It Fl d Ar name
945Specify the attached device name.
946This option is needed with the
947.Fl o Ar setdevname
948phy operation.
949The name is a 64-bit number, and can be specified in decimal, hexadecimal
950or octal format.
951.It Fl m Ar rate
952Set the minimum physical link rate for the phy.
953This is a numeric argument.
954Currently known link rates are:
955.Bl -tag -width 5n
956.It 0x0
957Do not change current value.
958.It 0x8
9591.5 Gbps
960.It 0x9
9613 Gbps
962.It 0xa
9636 Gbps
964.El
965.Pp
966Other values may be specified for newer physical link rates.
967.It Fl M Ar rate
968Set the maximum physical link rate for the phy.
969This is a numeric argument.
970See the
971.Fl m
972argument description for known link rate arguments.
973.It Fl T Ar pp_timeout
974Set the partial pathway timeout value, in microseconds.
975See the
976.Tn ANSI
977.Tn SAS
978Protocol Layer (SPL)
979specification for more information on this field.
980.It Fl a Ar enable|disable
981Enable or disable SATA slumber phy power conditions.
982.It Fl A Ar enable|disable
983Enable or disable SATA partial power conditions.
984.It Fl s Ar enable|disable
985Enable or disable SAS slumber phy power conditions.
986.It Fl S Ar enable|disable
987Enable or disable SAS partial phy power conditions.
988.El
989.It Ic smpphylist
990List phys attached to a SAS expander, the address of the end device
991attached to the phy, and the inquiry data for that device and peripheral
992devices attached to that device.
993The inquiry data and peripheral devices are displayed if available.
994.Bl -tag -width 5n
995.It Fl l
996Turn on the long response format for the underlying SMP commands used for
997this command.
998.It Fl q
999Only print out phys that are attached to a device in the CAM EDT (Existing
1000Device Table).
1001.El
1002.It Ic smpmaninfo
1003Send the SMP Report Manufacturer Information command to the device and
1004display the response.
1005.Bl -tag -width 5n
1006.It Fl l
1007Turn on the long response format for the underlying SMP commands used for
1008this command.
1009.El
1010.It Ic debug
1011Turn on CAM debugging printfs in the kernel.
1012This requires options CAMDEBUG
1013in your kernel config file.
1014WARNING: enabling debugging printfs currently
1015causes an EXTREME number of kernel printfs.
1016You may have difficulty
1017turning off the debugging printfs once they start, since the kernel will be
1018busy printing messages and unable to service other requests quickly.
1019The
1020.Ic debug
1021function takes a number of arguments:
1022.Bl -tag -width 18n
1023.It Fl I
1024Enable CAM_DEBUG_INFO printfs.
1025.It Fl P
1026Enable CAM_DEBUG_PERIPH printfs.
1027.It Fl T
1028Enable CAM_DEBUG_TRACE printfs.
1029.It Fl S
1030Enable CAM_DEBUG_SUBTRACE printfs.
1031.It Fl X
1032Enable CAM_DEBUG_XPT printfs.
1033.It Fl c
1034Enable CAM_DEBUG_CDB printfs.
1035This will cause the kernel to print out the
1036SCSI CDBs sent to the specified device(s).
1037.It Fl p
1038Enable CAM_DEBUG_PROBE printfs.
1039.It all
1040Enable debugging for all devices.
1041.It off
1042Turn off debugging for all devices
1043.It bus Ns Op :target Ns Op :lun
1044Turn on debugging for the given bus, target or lun.
1045If the lun or target
1046and lun are not specified, they are wildcarded.
1047(i.e., just specifying a
1048bus turns on debugging printfs for all devices on that bus.)
1049.El
1050.It Ic tags
1051Show or set the number of "tagged openings" or simultaneous transactions
1052we attempt to queue to a particular device.
1053By default, the
1054.Ic tags
1055command, with no command-specific arguments (i.e., only generic arguments)
1056prints out the "soft" maximum number of transactions that can be queued to
1057the device in question.
1058For more detailed information, use the
1059.Fl v
1060argument described below.
1061.Bl -tag -width 7n
1062.It Fl N Ar tags
1063Set the number of tags for the given device.
1064This must be between the
1065minimum and maximum number set in the kernel quirk table.
1066The default for
1067most devices that support tagged queueing is a minimum of 2 and a maximum
1068of 255.
1069The minimum and maximum values for a given device may be
1070determined by using the
1071.Fl v
1072switch.
1073The meaning of the
1074.Fl v
1075switch for this
1076.Nm
1077subcommand is described below.
1078.It Fl q
1079Be quiet, and do not report the number of tags.
1080This is generally used when
1081setting the number of tags.
1082.It Fl v
1083The verbose flag has special functionality for the
1084.Em tags
1085argument.
1086It causes
1087.Nm
1088to print out the tagged queueing related fields of the XPT_GDEV_TYPE CCB:
1089.Bl -tag -width 13n
1090.It dev_openings
1091This is the amount of capacity for transactions queued to a given device.
1092.It dev_active
1093This is the number of transactions currently queued to a device.
1094.It allocated
1095This is the number of CCBs allocated for the device.
1096.It held
1097The held count is the number of CCBs held by peripheral drivers that have
1098either just been completed or are about to be released to the transport
1099layer for service by a device.
1100Held CCBs reserve capacity on a given
1101device.
1102.It mintags
1103This is the current "hard" minimum number of transactions that can be
1104queued to a device at once.
1105The
1106.Ar dev_openings
1107value above cannot go below this number.
1108The default value for
1109.Ar mintags
1110is 2, although it may be set higher or lower for various devices.
1111.It maxtags
1112This is the "hard" maximum number of transactions that can be queued to a
1113device at one time.
1114The
1115.Ar dev_openings
1116value cannot go above this number.
1117The default value for
1118.Ar maxtags
1119is 255, although it may be set higher or lower for various devices.
1120.El
1121.El
1122.It Ic negotiate
1123Show or negotiate various communication parameters.
1124Some controllers may
1125not support setting or changing some of these values.
1126For instance, the
1127Adaptec 174x controllers do not support changing a device's sync rate or
1128offset.
1129The
1130.Nm
1131utility
1132will not attempt to set the parameter if the controller indicates that it
1133does not support setting the parameter.
1134To find out what the controller
1135supports, use the
1136.Fl v
1137flag.
1138The meaning of the
1139.Fl v
1140flag for the
1141.Ic negotiate
1142command is described below.
1143Also, some controller drivers do not support
1144setting negotiation parameters, even if the underlying controller supports
1145negotiation changes.
1146Some controllers, such as the Advansys wide
1147controllers, support enabling and disabling synchronous negotiation for
1148a device, but do not support setting the synchronous negotiation rate.
1149.Bl -tag -width 17n
1150.It Fl a
1151Attempt to make the negotiation settings take effect immediately by sending
1152a Test Unit Ready command to the device.
1153.It Fl c
1154Show or set current negotiation settings.
1155This is the default.
1156.It Fl D Ar enable|disable
1157Enable or disable disconnection.
1158.It Fl M Ar mode
1159Set ATA mode.
1160.It Fl O Ar offset
1161Set the command delay offset.
1162.It Fl q
1163Be quiet, do not print anything.
1164This is generally useful when you want to
1165set a parameter, but do not want any status information.
1166.It Fl R Ar syncrate
1167Change the synchronization rate for a device.
1168The sync rate is a floating
1169point value specified in MHz.
1170So, for instance,
1171.Sq 20.000
1172is a legal value, as is
1173.Sq 20 .
1174.It Fl T Ar enable|disable
1175Enable or disable tagged queueing for a device.
1176.It Fl U
1177Show or set user negotiation settings.
1178The default is to show or set
1179current negotiation settings.
1180.It Fl v
1181The verbose switch has special meaning for the
1182.Ic negotiate
1183subcommand.
1184It causes
1185.Nm
1186to print out the contents of a Path Inquiry (XPT_PATH_INQ) CCB sent to the
1187controller driver.
1188.It Fl W Ar bus_width
1189Specify the bus width to negotiate with a device.
1190The bus width is
1191specified in bits.
1192The only useful values to specify are 8, 16, and 32
1193bits.
1194The controller must support the bus width in question in order for
1195the setting to take effect.
1196.El
1197.Pp
1198In general, sync rate and offset settings will not take effect for a
1199device until a command has been sent to the device.
1200The
1201.Fl a
1202switch above will automatically send a Test Unit Ready to the device so
1203negotiation parameters will take effect.
1204.It Ic format
1205Issue the
1206.Tn SCSI
1207FORMAT UNIT command to the named device.
1208.Pp
1209.Em WARNING! WARNING! WARNING!
1210.Pp
1211Low level formatting a disk will destroy ALL data on the disk.
1212Use
1213extreme caution when issuing this command.
1214Many users low-level format
1215disks that do not really need to be low-level formatted.
1216There are
1217relatively few scenarios that call for low-level formatting a disk.
1218One reason for
1219low-level formatting a disk is to initialize the disk after changing
1220its physical sector size.
1221Another reason for low-level formatting a disk
1222is to revive the disk if you are getting "medium format corrupted" errors
1223from the disk in response to read and write requests.
1224.Pp
1225Some disks take longer than others to format.
1226Users should specify a
1227timeout long enough to allow the format to complete.
1228The default format
1229timeout is 3 hours, which should be long enough for most disks.
1230Some hard
1231disks will complete a format operation in a very short period of time
1232(on the order of 5 minutes or less).
1233This is often because the drive
1234does not really support the FORMAT UNIT command -- it just accepts the
1235command, waits a few minutes and then returns it.
1236.Pp
1237The
1238.Sq format
1239subcommand takes several arguments that modify its default behavior.
1240The
1241.Fl q
1242and
1243.Fl y
1244arguments can be useful for scripts.
1245.Bl -tag -width 6n
1246.It Fl q
1247Be quiet, do not print any status messages.
1248This option will not disable
1249the questions, however.
1250To disable questions, use the
1251.Fl y
1252argument, below.
1253.It Fl r
1254Run in
1255.Dq report only
1256mode.
1257This will report status on a format that is already running on the drive.
1258.It Fl w
1259Issue a non-immediate format command.
1260By default,
1261.Nm
1262issues the FORMAT UNIT command with the immediate bit set.
1263This tells the
1264device to immediately return the format command, before the format has
1265actually completed.
1266Then,
1267.Nm
1268gathers
1269.Tn SCSI
1270sense information from the device every second to determine how far along
1271in the format process it is.
1272If the
1273.Fl w
1274argument is specified,
1275.Nm
1276will issue a non-immediate format command, and will be unable to print any
1277information to let the user know what percentage of the disk has been
1278formatted.
1279.It Fl y
1280Do not ask any questions.
1281By default,
1282.Nm
1283will ask the user if he/she really wants to format the disk in question,
1284and also if the default format command timeout is acceptable.
1285The user
1286will not be asked about the timeout if a timeout is specified on the
1287command line.
1288.El
1289.It Ic sanitize
1290Issue the SANITIZE command to the named device.
1291.Pp
1292.Em WARNING! WARNING! WARNING!
1293.Pp
1294ALL data on the disk will be destroyed or made inaccessible.
1295Recovery of the data is not possible.
1296Use extreme caution when issuing this command.
1297.Pp
1298The
1299.Sq sanitize
1300subcommand takes several arguments that modify its default behavior.
1301The
1302.Fl q
1303and
1304.Fl y
1305arguments can be useful for scripts.
1306.Bl -tag -width 6n
1307.It Fl a Ar operation
1308Specify the sanitize operation to perform.
1309.Bl -tag -width 16n
1310.It overwrite
1311Perform an overwrite operation by writing a user supplied
1312data pattern to the device one or more times.
1313The pattern is given by the
1314.Fl P
1315argument.
1316The number of times is given by the
1317.Fl c
1318argument.
1319.It block
1320Perform a block erase operation.
1321All the device's blocks are set to a vendor defined
1322value, typically zero.
1323.It crypto
1324Perform a cryptographic erase operation.
1325The encryption keys are changed to prevent the decryption
1326of the data.
1327.It exitfailure
1328Exits a previously failed sanitize operation.
1329A failed sanitize operation can only be exited if it was
1330run in the unrestricted completion mode, as provided by the
1331.Fl U
1332argument.
1333.El
1334.It Fl c Ar passes
1335The number of passes when performing an
1336.Sq overwrite
1337operation.
1338Valid values are between 1 and 31.
1339The default is 1.
1340.It Fl I
1341When performing an
1342.Sq overwrite
1343operation, the pattern is inverted between consecutive passes.
1344.It Fl P Ar pattern
1345Path to the file containing the pattern to use when
1346performing an
1347.Sq overwrite
1348operation.
1349The pattern is repeated as needed to fill each block.
1350.It Fl q
1351Be quiet, do not print any status messages.
1352This option will not disable
1353the questions, however.
1354To disable questions, use the
1355.Fl y
1356argument, below.
1357.It Fl U
1358Perform the sanitize in the unrestricted completion mode.
1359If the operation fails, it can later be exited with the
1360.Sq exitfailure
1361operation.
1362.It Fl r
1363Run in
1364.Dq report only
1365mode.
1366This will report status on a sanitize that is already running on the drive.
1367.It Fl w
1368Issue a non-immediate sanitize command.
1369By default,
1370.Nm
1371issues the SANITIZE command with the immediate bit set.
1372This tells the
1373device to immediately return the sanitize command, before
1374the sanitize has actually completed.
1375Then,
1376.Nm
1377gathers
1378.Tn SCSI
1379sense information from the device every second to determine how far along
1380in the sanitize process it is.
1381If the
1382.Fl w
1383argument is specified,
1384.Nm
1385will issue a non-immediate sanitize command, and will be unable to print any
1386information to let the user know what percentage of the disk has been
1387sanitized.
1388.It Fl y
1389Do not ask any questions.
1390By default,
1391.Nm
1392will ask the user if he/she really wants to sanitize the disk in question,
1393and also if the default sanitize command timeout is acceptable.
1394The user
1395will not be asked about the timeout if a timeout is specified on the
1396command line.
1397.El
1398.It Ic idle
1399Put ATA device into IDLE state.
1400Optional parameter
1401.Pq Fl t
1402specifies automatic standby timer value in seconds.
1403Value 0 disables timer.
1404.It Ic standby
1405Put ATA device into STANDBY state.
1406Optional parameter
1407.Pq Fl t
1408specifies automatic standby timer value in seconds.
1409Value 0 disables timer.
1410.It Ic sleep
1411Put ATA device into SLEEP state.
1412Note that the only way get device out of
1413this state may be reset.
1414.It Ic powermode
1415Report ATA device power mode.
1416.It Ic apm
1417It optional parameter
1418.Pq Fl l
1419specified, enables and sets advanced power management level, where
14201 -- minimum power, 127 -- maximum performance with standby,
1421128 -- minimum power without standby, 254 -- maximum performance.
1422If not specified -- APM is disabled.
1423.It Ic aam
1424It optional parameter
1425.Pq Fl l
1426specified, enables and sets automatic acoustic management level, where
14271 -- minimum noise, 254 -- maximum performance.
1428If not specified -- AAM is disabled.
1429.It Ic security
1430Update or report security settings, using an ATA identify command (0xec).
1431By default,
1432.Nm
1433will print out the security support and associated settings of the device.
1434The
1435.Ic security
1436command takes several arguments:
1437.Bl -tag -width 0n
1438.It Fl d Ar pwd
1439.Pp
1440Disable device security using the given password for the selected user according
1441to the devices configured security level.
1442.It Fl e Ar pwd
1443.Pp
1444Erase the device using the given password for the selected user.
1445.Pp
1446.Em WARNING! WARNING! WARNING!
1447.Pp
1448Issuing a secure erase will
1449.Em ERASE ALL
1450user data on the device and may take several hours to complete.
1451.Pp
1452When this command is used against an SSD drive all its cells will be marked as
1453empty, restoring it to factory default write performance.
1454For SSD's this action
1455usually takes just a few seconds.
1456.It Fl f
1457.Pp
1458Freeze the security configuration of the specified device.
1459.Pp
1460After command completion any other commands that update the device lock mode
1461shall be command aborted.
1462Frozen mode is disabled by power-off or hardware reset.
1463.It Fl h Ar pwd
1464.Pp
1465Enhanced erase the device using the given password for the selected user.
1466.Pp
1467.Em WARNING! WARNING! WARNING!
1468.Pp
1469Issuing an enhanced secure erase will
1470.Em ERASE ALL
1471user data on the device and may take several hours to complete.
1472.Pp
1473An enhanced erase writes predetermined data patterns to all user data areas,
1474all previously written user data shall be overwritten, including sectors that
1475are no longer in use due to reallocation.
1476.It Fl k Ar pwd
1477.Pp
1478Unlock the device using the given password for the selected user according to
1479the devices configured security level.
1480.It Fl l Ar high|maximum
1481.Pp
1482Specifies which security level to set when issuing a
1483.Fl s Ar pwd
1484command.
1485The security level determines device behavior when the master
1486password is used to unlock the device.
1487When the security level is set to high
1488the device requires the unlock command and the master password to unlock.
1489When the security level is set to maximum the device requires a secure erase
1490with the master password to unlock.
1491.Pp
1492This option must be used in conjunction with one of the security action commands.
1493.Pp
1494Defaults to
1495.Em high
1496.It Fl q
1497.Pp
1498Be quiet, do not print any status messages.
1499This option will not disable the questions, however.
1500To disable questions, use the
1501.Fl y
1502argument, below.
1503.It Fl s Ar pwd
1504.Pp
1505Password the device (enable security) using the given password for the selected
1506user.
1507This option can be combined with other options such as
1508.Fl e Em pwd
1509.Pp
1510A master password may be set in a addition to the user password.
1511The purpose of the master password is to allow an administrator to establish
1512a password that is kept secret from the user, and which may be used to unlock
1513the device if the user password is lost.
1514.Pp
1515.Em Note:
1516Setting the master password does not enable device security.
1517.Pp
1518If the master password is set and the drive supports a Master Revision Code
1519feature the Master Password Revision Code will be decremented.
1520.It Fl T Ar timeout
1521.Pp
1522Overrides the default timeout, specified in seconds, used for both
1523.Fl e
1524and
1525.Fl h
1526this is useful if your system has problems processing long timeouts correctly.
1527.Pp
1528Usually the timeout is calculated from the information stored on the drive if
1529present, otherwise it defaults to 2 hours.
1530.It Fl U Ar user|master
1531.Pp
1532Specifies which user to set / use for the running action command, valid values
1533are user or master and defaults to master if not set.
1534.Pp
1535This option must be used in conjunction with one of the security action commands.
1536.Pp
1537Defaults to
1538.Em master
1539.It Fl y
1540.Pp
1541Confirm yes to dangerous options such as
1542.Fl e
1543without prompting for confirmation.
1544.El
1545.Pp
1546If the password specified for any action commands does not match the configured
1547password for the specified user the command will fail.
1548.Pp
1549The password in all cases is limited to 32 characters, longer passwords will
1550fail.
1551.It Ic hpa
1552Update or report Host Protected Area details.
1553By default
1554.Nm
1555will print out the HPA support and associated settings of the device.
1556The
1557.Ic hpa
1558command takes several optional arguments:
1559.Bl -tag -width 0n
1560.It Fl f
1561.Pp
1562Freeze the HPA configuration of the specified device.
1563.Pp
1564After command completion any other commands that update the HPA configuration
1565shall be command aborted.
1566Frozen mode is disabled by power-off or hardware reset.
1567.It Fl l
1568.Pp
1569Lock the HPA configuration of the device until a successful call to unlock or
1570the next power-on reset occurs.
1571.It Fl P
1572.Pp
1573Make the HPA max sectors persist across power-on reset or a hardware reset.
1574This must be used in combination with
1575.Fl s Ar max_sectors
1576.
1577.It Fl p Ar pwd
1578.Pp
1579Set the HPA configuration password required for unlock calls.
1580.It Fl q
1581.Pp
1582Be quiet, do not print any status messages.
1583This option will not disable the questions.
1584To disable questions, use the
1585.Fl y
1586argument, below.
1587.It Fl s Ar max_sectors
1588.Pp
1589Configures the maximum user accessible sectors of the device.
1590This will change the number of sectors the device reports.
1591.Pp
1592.Em WARNING! WARNING! WARNING!
1593.Pp
1594Changing the max sectors of a device using this option will make the data on
1595the device beyond the specified value inaccessible.
1596.Pp
1597Only one successful
1598.Fl s Ar max_sectors
1599call can be made without a power-on reset or a hardware reset of the device.
1600.It Fl U Ar pwd
1601.Pp
1602Unlock the HPA configuration of the specified device using the given password.
1603If the password specified does not match the password configured via
1604.Fl p Ar pwd
1605the command will fail.
1606.Pp
1607After 5 failed unlock calls, due to password miss-match, the device will refuse
1608additional unlock calls until after a power-on reset.
1609.It Fl y
1610.Pp
1611Confirm yes to dangerous options such as
1612.Fl e
1613without prompting for confirmation
1614.El
1615.Pp
1616The password for all HPA commands is limited to 32 characters, longer passwords
1617will fail.
1618.It Ic ama
1619Update or report Accessible Max Address Configuration.
1620By default
1621.Nm
1622will print out the Accessible Max Address Configuration support and associated
1623settings of the device.
1624The
1625.Ic ama
1626command takes several optional arguments:
1627.Bl -tag -width 0n
1628.It Fl f
1629.Pp
1630Freeze the Accessible Max Address Configuration of the specified device.
1631.Pp
1632After command completion any other commands that update the configuration
1633shall be command aborted.
1634Frozen mode is disabled by power-off.
1635.It Fl q
1636.Pp
1637Be quiet, do not print any status messages.
1638.It Fl s Ar max_sectors
1639.Pp
1640Configures the maximum user accessible sectors of the device.
1641This will change the number of sectors the device reports.
1642.Pp
1643.Em WARNING! WARNING! WARNING!
1644.Pp
1645Changing the max sectors of a device using this option will make the data on
1646the device beyond the specified value indeterminate.
1647.Pp
1648Only one successful
1649.Fl s Ar max_sectors
1650call can be made without a power-on reset of the device.
1651.El
1652.It Ic fwdownload
1653Program firmware of the named
1654.Tn SCSI
1655or ATA device using the image file provided.
1656.Pp
1657If the device is a
1658.Tn SCSI
1659device and it provides a recommended timeout for the WRITE BUFFER command
1660(see the
1661.Nm
1662opcodes subcommand), that timeout will be used for the firmware download.
1663The drive-recommended timeout value may be overridden on the command line
1664with the
1665.Fl t
1666option.
1667.Pp
1668Current list of supported vendors for SCSI/SAS drives:
1669.Bl -tag -width 10n
1670.It HGST
1671Tested with 4TB SAS drives, model number HUS724040ALS640.
1672.It HITACHI
1673.It HP
1674.It IBM
1675Tested with LTO-5 (ULTRIUM-HH5) and LTO-6 (ULTRIUM-HH6) tape drives.
1676There is a separate table entry for hard drives, because the update method
1677for hard drives is different than the method for tape drives.
1678.It PLEXTOR
1679.It QUALSTAR
1680.It QUANTUM
1681.It SAMSUNG
1682Tested with SM1625 SSDs.
1683.It SEAGATE
1684Tested with Constellation ES (ST32000444SS), ES.2 (ST33000651SS) and
1685ES.3 (ST1000NM0023) drives.
1686.It SmrtStor
1687Tested with 400GB Optimus SSDs (TXA2D20400GA6001).
1688.El
1689.Pp
1690.Em WARNING! WARNING! WARNING!
1691.Pp
1692Little testing has been done to make sure that different device models from
1693each vendor work correctly with the fwdownload command.
1694A vendor name appearing in the supported list means only that firmware of at
1695least one device type from that vendor has successfully been programmed with
1696the fwdownload command.
1697Extra caution should be taken when using this command since there is no
1698guarantee it will not break a device from the listed vendors.
1699Ensure that you have a recent backup of the data on the device before
1700performing a firmware update.
1701.Pp
1702Note that unknown
1703.Tn SCSI
1704protocol devices will not be programmed, since there is little chance of
1705the firmware download succeeding.
1706.Pp
1707.Nm
1708will currently attempt a firmware download to any
1709.Tn ATA
1710or
1711.Tn SATA
1712device, since the standard
1713.Tn ATA
1714DOWNLOAD MICROCODE command may work.
1715Firmware downloads to
1716.Tn ATA
1717and
1718.Tn SATA
1719devices are supported for devices connected
1720to standard
1721.Tn ATA
1722and
1723.Tn SATA
1724controllers, and devices connected to SAS controllers
1725with
1726.Tn SCSI
1727to
1728.Tn ATA
1729translation capability.
1730In the latter case,
1731.Nm
1732uses the
1733.Tn SCSI
1734.Tn ATA
1735PASS-THROUGH command to send the
1736.Tn ATA
1737DOWNLOAD MICROCODE command to the drive.
1738Some
1739.Tn SCSI
1740to
1741.Tn ATA
1742translation implementations don't work fully when translating
1743.Tn SCSI
1744WRITE BUFFER commands to
1745.Tn ATA
1746DOWNLOAD MICROCODE commands, but do support
1747.Tn ATA
1748passthrough well enough to do a firmware download.
1749.Bl -tag -width 11n
1750.It Fl f Ar fw_image
1751Path to the firmware image file to be downloaded to the specified device.
1752.It Fl q
1753Do not print informational messages, only print errors.
1754This option should be used with the
1755.Fl y
1756option to suppress all output.
1757.It Fl s
1758Run in simulation mode.
1759Device checks are run and the confirmation dialog is shown, but no firmware
1760download will occur.
1761.It Fl v
1762Show
1763.Tn SCSI
1764or
1765.Tn ATA
1766errors in the event of a failure.
1767.Pp
1768In simulation mode, print out the
1769.Tn SCSI
1770CDB
1771or
1772.Tn ATA
1773register values that would be used for the firmware download command.
1774.It Fl y
1775Do not ask for confirmation.
1776.El
1777.It Ic persist
1778Persistent reservation support.
1779Persistent reservations are a way to reserve a particular
1780.Tn SCSI
1781LUN for use by one or more
1782.Tn SCSI
1783initiators.
1784If the
1785.Fl i
1786option is specified,
1787.Nm
1788will issue the
1789.Tn SCSI
1790PERSISTENT RESERVE IN
1791command using the requested service action.
1792If the
1793.Fl o
1794option is specified,
1795.Nm
1796will issue the
1797.Tn SCSI
1798PERSISTENT RESERVE OUT
1799command using the requested service action.
1800One of those two options is required.
1801.Pp
1802Persistent reservations are complex, and fully explaining them is outside
1803the scope of this manual.
1804Please visit
1805https://www.t10.org
1806and download the latest SPC spec for a full explanation of persistent
1807reservations.
1808.Bl -tag -width 8n
1809.It Fl i Ar mode
1810Specify the service action for the PERSISTENT RESERVE IN command.
1811Supported service actions:
1812.Bl -tag -width 19n
1813.It read_keys
1814Report the current persistent reservation generation (PRgeneration) and any
1815registered keys.
1816.It read_reservation
1817Report the persistent reservation, if any.
1818.It report_capabilities
1819Report the persistent reservation capabilities of the LUN.
1820.It read_full_status
1821Report the full status of persistent reservations on the LUN.
1822.El
1823.It Fl o Ar mode
1824Specify the service action for the PERSISTENT RESERVE OUT command.
1825For service actions like register that are components of other service
1826action names, the entire name must be specified.
1827Otherwise, enough of the service action name must be specified to
1828distinguish it from other possible service actions.
1829Supported service actions:
1830.Bl -tag -width 15n
1831.It register
1832Register a reservation key with the LUN or unregister a reservation key.
1833To register a key, specify the requested key as the Service Action
1834Reservation Key.
1835To unregister a key, specify the previously registered key as the
1836Reservation Key.
1837To change a key, specify the old key as the Reservation Key and the new
1838key as the Service Action Reservation Key.
1839.It register_ignore
1840This is similar to the register subcommand, except that the Reservation Key
1841is ignored.
1842The Service Action Reservation Key will overwrite any previous key
1843registered for the initiator.
1844.It reserve
1845Create a reservation.
1846A key must be registered with the LUN before the LUN can be reserved, and
1847it must be specified as the Reservation Key.
1848The type of reservation must also be specified.
1849The scope defaults to LUN scope (LU_SCOPE), but may be changed.
1850.It release
1851Release a reservation.
1852The Reservation Key must be specified.
1853.It clear
1854Release a reservation and remove all keys from the device.
1855The Reservation Key must be specified.
1856.It preempt
1857Remove a reservation belonging to another initiator.
1858The Reservation Key must be specified.
1859The Service Action Reservation Key may be specified, depending on the
1860operation being performed.
1861.It preempt_abort
1862Remove a reservation belonging to another initiator and abort all
1863outstanding commands from that initiator.
1864The Reservation Key must be specified.
1865The Service Action Reservation Key may be specified, depending on the
1866operation being performed.
1867.It register_move
1868Register another initiator with the LUN, and establish a reservation on the
1869LUN for that initiator.
1870The Reservation Key and Service Action Reservation Key must be specified.
1871.It replace_lost
1872Replace Lost Reservation information.
1873.El
1874.It Fl a
1875Set the All Target Ports (ALL_TG_PT) bit.
1876This requests that the key registration be applied to all target ports and
1877not just the particular target port that receives the command.
1878This only applies to the register and register_ignore actions.
1879.It Fl I Ar tid
1880Specify a Transport ID.
1881This only applies to the Register and Register and Move service actions for
1882Persistent Reserve Out.
1883Multiple Transport IDs may be specified with multiple
1884.Fl I
1885arguments.
1886With the Register service action, specifying one or more Transport IDs
1887implicitly enables the
1888.Fl S
1889option which turns on the SPEC_I_PT bit.
1890Transport IDs generally have the format protocol,id.
1891.Bl -tag -width 5n
1892.It SAS
1893A SAS Transport ID consists of
1894.Dq sas,
1895followed by a 64-bit SAS address.
1896For example:
1897.Pp
1898.Dl sas,0x1234567812345678
1899.It FC
1900A Fibre Channel Transport ID consists of
1901.Dq fcp,
1902followed by a 64-bit Fibre Channel World Wide Name.
1903For example:
1904.Pp
1905.Dl fcp,0x1234567812345678
1906.It SPI
1907A Parallel SCSI address consists of
1908.Dq spi,
1909followed by a SCSI target ID and a relative target port identifier.
1910For example:
1911.Pp
1912.Dl spi,4,1
1913.It 1394
1914An IEEE 1394 (Firewire) Transport ID consists of
1915.Dq sbp,
1916followed by a 64-bit EUI-64 IEEE 1394 node unique identifier.
1917For example:
1918.Pp
1919.Dl sbp,0x1234567812345678
1920.It RDMA
1921A SCSI over RDMA Transport ID consists of
1922.Dq srp,
1923followed by a 128-bit RDMA initiator port identifier.
1924The port identifier must be exactly 32 or 34 (if the leading 0x is
1925included) hexadecimal digits.
1926Only hexadecimal (base 16) numbers are supported.
1927For example:
1928.Pp
1929.Dl srp,0x12345678123456781234567812345678
1930.It iSCSI
1931An iSCSI Transport ID consists an iSCSI name and optionally a separator and
1932iSCSI session ID.
1933For example, if only the iSCSI name is specified:
1934.Pp
1935.Dl iqn.2012-06.com.example:target0
1936.Pp
1937If the iSCSI separator and initiator session ID are specified:
1938.Pp
1939.Dl iqn.2012-06.com.example:target0,i,0x123
1940.It PCIe
1941A SCSI over PCIe Transport ID consists of
1942.Dq sop,
1943followed by a PCIe Routing ID.
1944The Routing ID consists of a bus, device and function or in the alternate
1945form, a bus and function.
1946The bus must be in the range of 0 to 255 inclusive and the device must be
1947in the range of 0 to 31 inclusive.
1948The function must be in the range of 0 to 7 inclusive if the standard form
1949is used, and in the range of 0 to 255 inclusive if the alternate form is
1950used.
1951For example, if a bus, device and function are specified for the standard
1952Routing ID form:
1953.Pp
1954.Dl sop,4,5,1
1955.Pp
1956If the alternate Routing ID form is used:
1957.Pp
1958.Dl sop,4,1
1959.El
1960.It Fl k Ar key
1961Specify the Reservation Key.
1962This may be in decimal, octal or hexadecimal format.
1963The value is zero by default if not otherwise specified.
1964The value must be between 0 and 2^64 - 1, inclusive.
1965.It Fl K Ar key
1966Specify the Service Action Reservation Key.
1967This may be in decimal, octal or hexadecimal format.
1968The value is zero by default if not otherwise specified.
1969The value must be between 0 and 2^64 - 1, inclusive.
1970.It Fl p
1971Enable the Activate Persist Through Power Loss bit.
1972This is only used for the register and register_ignore actions.
1973This requests that the reservation persist across power loss events.
1974.It Fl s Ar scope
1975Specify the scope of the reservation.
1976The scope may be specified by name or by number.
1977The scope is ignored for register, register_ignore and clear.
1978If the desired scope isn't available by name, you may specify the number.
1979.Bl -tag -width 7n
1980.It lun
1981LUN scope (0x00).
1982This encompasses the entire LUN.
1983.It extent
1984Extent scope (0x01).
1985.It element
1986Element scope (0x02).
1987.El
1988.It Fl R Ar rtp
1989Specify the Relative Target Port.
1990This only applies to the Register and Move service action of the Persistent
1991Reserve Out command.
1992.It Fl S
1993Enable the SPEC_I_PT bit.
1994This only applies to the Register service action of Persistent Reserve Out.
1995You must also specify at least one Transport ID with
1996.Fl I
1997if this option is set.
1998If you specify a Transport ID, this option is automatically set.
1999It is an error to specify this option for any service action other than
2000Register.
2001.It Fl T Ar type
2002Specify the reservation type.
2003The reservation type may be specified by name or by number.
2004If the desired reservation type isn't available by name, you may specify
2005the number.
2006Supported reservation type names:
2007.Bl -tag -width 11n
2008.It read_shared
2009Read Shared mode.
2010.It wr_ex
2011Write Exclusive mode.
2012May also be specified as
2013.Dq write_exclusive .
2014.It rd_ex
2015Read Exclusive mode.
2016May also be specified as
2017.Dq read_exclusive .
2018.It ex_ac
2019Exclusive access mode.
2020May also be specified as
2021.Dq exclusive_access .
2022.It wr_ex_ro
2023Write Exclusive Registrants Only mode.
2024May also be specified as
2025.Dq write_exclusive_reg_only .
2026.It ex_ac_ro
2027Exclusive Access Registrants Only mode.
2028May also be specified as
2029.Dq exclusive_access_reg_only .
2030.It wr_ex_ar
2031Write Exclusive All Registrants mode.
2032May also be specified as
2033.Dq write_exclusive_all_regs .
2034.It ex_ac_ar
2035Exclusive Access All Registrants mode.
2036May also be specified as
2037.Dq exclusive_access_all_regs .
2038.El
2039.It Fl U
2040Specify that the target should unregister the initiator that sent
2041the Register and Move request.
2042By default, the target will not unregister the initiator that sends the
2043Register and Move request.
2044This option only applies to the Register and Move service action of the
2045Persistent Reserve Out command.
2046.El
2047.It Ic attrib
2048Issue the
2049.Tn SCSI
2050READ or WRITE ATTRIBUTE commands.
2051These commands are used to read and write attributes in Medium Auxiliary
2052Memory (MAM).
2053The most common place Medium Auxiliary Memory is found is small flash chips
2054included tape cartriges.
2055For instance,
2056.Tn LTO
2057tapes have MAM.
2058Either the
2059.Fl r
2060option or the
2061.Fl w
2062option must be specified.
2063.Bl -tag -width 14n
2064.It Fl r Ar action
2065Specify the READ ATTRIBUTE service action.
2066.Bl -tag -width 11n
2067.It attr_values
2068Issue the ATTRIBUTE VALUES service action.
2069Read and decode the available attributes and their values.
2070.It attr_list
2071Issue the ATTRIBUTE LIST service action.
2072List the attributes that are available to read and write.
2073.It lv_list
2074Issue the LOGICAL VOLUME LIST service action.
2075List the available logical volumes in the MAM.
2076.It part_list
2077Issue the PARTITION LIST service action.
2078List the available partitions in the MAM.
2079.It supp_attr
2080Issue the SUPPORTED ATTRIBUTES service action.
2081List attributes that are supported for reading or writing.
2082These attributes may or may not be currently present in the MAM.
2083.El
2084.It Fl w Ar attr
2085Specify an attribute to write to the MAM.
2086This option is not yet implemented.
2087.It Fl a Ar num
2088Specify the attribute number to display.
2089This option only works with the attr_values, attr_list and supp_attr
2090arguments to
2091.Fl r .
2092.It Fl c
2093Display cached attributes.
2094If the device supports this flag, it allows displaying attributes for the
2095last piece of media loaded in the drive.
2096.It Fl e Ar num
2097Specify the element address.
2098This is used for specifying which element number in a medium changer to
2099access when reading attributes.
2100The element number could be for a picker, portal, slot or drive.
2101.It Fl F Ar form1,form2
2102Specify the output format for the attribute values (attr_val) display as a
2103comma separated list of options.
2104The default output is currently set to field_all,nonascii_trim,text_raw.
2105Once this code is ported to FreeBSD 10, any text fields will be converted
2106from their codeset to the user's native codeset with
2107.Xr iconv 3 .
2108.Pp
2109The text options are mutually exclusive; if you specify more than one, you
2110will get unpredictable results.
2111The nonascii options are also mutually exclusive.
2112Most of the field options may be logically ORed together.
2113.Bl -tag -width 12n
2114.It text_esc
2115Print text fields with non-ASCII characters escaped.
2116.It text_raw
2117Print text fields natively, with no codeset conversion.
2118.It nonascii_esc
2119If any non-ASCII characters occur in fields that are supposed to be ASCII,
2120escape the non-ASCII characters.
2121.It nonascii_trim
2122If any non-ASCII characters occur in fields that are supposed to be ASCII,
2123omit the non-ASCII characters.
2124.It nonascii_raw
2125If any non-ASCII characters occur in fields that are supposed to be ASCII,
2126print them as they are.
2127.It field_all
2128Print all of the prefix fields: description, attribute number, attribute
2129size, and the attribute's readonly status.
2130If field_all is specified, specifying any other field options will not have
2131an effect.
2132.It field_none
2133Print none of the prefix fields, and only print out the attribute value.
2134If field_none is specified, specifying any other field options will result
2135in those fields being printed.
2136.It field_desc
2137Print out the attribute description.
2138.It field_num
2139Print out the attribute number.
2140.It field_size
2141Print out the attribute size.
2142.It field_rw
2143Print out the attribute's readonly status.
2144.El
2145.It Fl p Ar part
2146Specify the partition.
2147When the media has multiple partitions, specifying different partition
2148numbers allows seeing the values for each individual partition.
2149.It Fl s Ar start_num
2150Specify the starting attribute number.
2151This requests that the target device return attribute information starting
2152at the given number.
2153.It Fl T Ar elem_type
2154Specify the element type.
2155For medium changer devices, this allows specifying the type the element
2156referenced in the element address (
2157.Fl e ) .
2158Valid types are:
2159.Dq all ,
2160.Dq picker ,
2161.Dq slot ,
2162.Dq portal ,
2163and
2164.Dq drive .
2165.It Fl V Ar vol_num
2166Specify the number of the logical volume to operate on.
2167If the media has multiple logical volumes, this will allow displaying
2168or writing attributes on the given logical volume.
2169.El
2170.It Ic opcodes
2171Issue the REPORT SUPPORTED OPCODES service action of the
2172.Tn SCSI
2173MAINTENANCE IN
2174command.
2175Without arguments, this command will return a list of all
2176.Tn SCSI
2177commands supported by the device, including service actions of commands
2178that support service actions.
2179It will also include the
2180.Tn SCSI
2181CDB (Command Data Block) length for each command, and the description of
2182each command if it is known.
2183.Bl -tag -width 18n
2184.It Fl o Ar opcode
2185Request information on a specific opcode instead of the list of supported
2186commands.
2187If supported, the target will return a CDB-like structure that indicates
2188the opcode, service action (if any), and a mask of bits that are supported
2189in that CDB.
2190.It Fl s Ar service_action
2191For commands that support a service action, specify the service action to
2192query.
2193.It Fl N
2194If a service action is specified for a given opcode, and the device does
2195not support the given service action, the device should not return a
2196.Tn SCSI
2197error, but rather indicate in the returned parameter data that the command
2198is not supported.
2199By default, if a service action is specified for an opcode, and service
2200actions are not supported for the opcode in question, the device will
2201return an error.
2202.It Fl T
2203Include timeout values.
2204This option works with the default display, which includes all commands
2205supported by the device, and with the
2206.Fl o
2207and
2208.Fl s
2209options, which request information on a specific command and service
2210action.
2211This requests that the device report Nominal and Recommended timeout values
2212for the given command or commands.
2213The timeout values are in seconds.
2214The timeout descriptor also includes a command-specific
2215.El
2216.It Ic zone
2217Manage
2218.Tn SCSI
2219and
2220.Tn ATA
2221Zoned Block devices.
2222This allows managing devices that conform to the
2223.Tn SCSI
2224Zoned Block Commands (ZBC) and
2225.Tn ATA
2226Zoned ATA Command Set (ZAC)
2227specifications.
2228Devices using these command sets are usually hard drives using Shingled
2229Magnetic Recording (SMR).
2230There are three types of SMR drives:
2231.Bl -tag -width 13n
2232.It Drive Managed
2233Drive Managed drives look and act just like a standard random access block
2234device, but underneath, the drive reads and writes the bulk of its capacity
2235using SMR zones.
2236Sequential writes will yield better performance, but writing sequentially
2237is not required.
2238.It Host Aware
2239Host Aware drives expose the underlying zone layout via
2240.Tn SCSI
2241or
2242.Tn ATA
2243commands and allow the host to manage the zone conditions.
2244The host is not required to manage the zones on the drive, though.
2245Sequential writes will yield better performance in Sequential Write
2246Preferred zones, but the host can write randomly in those zones.
2247.It Host Managed
2248Host Managed drives expose the underlying zone layout via
2249.Tn SCSI
2250or
2251.Tn ATA
2252commands.
2253The host is required to access the zones according to the rules described
2254by the zone layout.
2255Any commands that violate the rules will be returned with an error.
2256.El
2257.Pp
2258SMR drives are divided into zones (typically in the range of 256MB each)
2259that fall into three general categories:
2260.Bl -tag -width 20n
2261.It Conventional
2262These are also known as Non Write Pointer zones.
2263These zones can be randomly written without an unexpected performance penalty.
2264.It Sequential Preferred
2265These zones should be written sequentially starting at the write pointer
2266for the zone.
2267They may be written randomly.
2268Writes that do not conform to the zone layout may be significantly slower
2269than expected.
2270.It Sequential Required
2271These zones must be written sequentially.
2272If they are not written sequentially, starting at the write pointer, the
2273command will fail.
2274.El
2275.Bl -tag -width 12n
2276.It Fl c Ar cmd
2277Specify the zone subcommand:
2278.Bl -tag -width 6n
2279.It rz
2280Issue the Report Zones command.
2281All zones are returned by default.
2282Specify report options with
2283.Fl o
2284and printing options with
2285.Fl P .
2286Specify the starting LBA with
2287.Fl l .
2288Note that
2289.Dq reportzones
2290is also accepted as a command argument.
2291.It open
2292Explicitly open the zone specified by the starting LBA.
2293.It close
2294Close the zone specified by starting LBA.
2295.It finish
2296Finish the zone specified by the starting LBA.
2297.It rwp
2298Reset the write pointer for the zone specified by the starting LBA.
2299.El
2300.It Fl a
2301For the Open, Close, Finish, and Reset Write Pointer operations, apply the
2302operation to all zones on the drive.
2303.It Fl l Ar lba
2304Specify the starting LBA.
2305For the Report Zones command, this tells the drive to report starting with
2306the zone that starts at the given LBA.
2307For the other commands, this allows the user to identify the zone requested
2308by its starting LBA.
2309The LBA may be specified in decimal, hexadecimal or octal notation.
2310.It Fl o Ar rep_opt
2311For the Report Zones command, specify a subset of zones to report.
2312.Bl -tag -width 8n
2313.It all
2314Report all zones.
2315This is the default.
2316.It emtpy
2317Report only empty zones.
2318.It imp_open
2319Report zones that are implicitly open.
2320This means that the host has sent a write to the zone without explicitly
2321opening the zone.
2322.It exp_open
2323Report zones that are explicitly open.
2324.It closed
2325Report zones that have been closed by the host.
2326.It full
2327Report zones that are full.
2328.It ro
2329Report zones that are in the read only state.
2330Note that
2331.Dq readonly
2332is also accepted as an argument.
2333.It offline
2334Report zones that are in the offline state.
2335.It reset
2336Report zones where the device recommends resetting write pointers.
2337.It nonseq
2338Report zones that have the Non Sequential Resources Active flag set.
2339These are zones that are Sequential Write Preferred, but have been written
2340non-sequentially.
2341.It nonwp
2342Report Non Write Pointer zones, also known as Conventional zones.
2343.El
2344.It Fl P Ar print_opt
2345Specify a printing option for Report Zones:
2346.Bl -tag -width 7n
2347.It normal
2348Normal Report Zones output.
2349This is the default.
2350The summary and column headings are printed, fields are separated by spaces
2351and the fields themselves may contain spaces.
2352.It summary
2353Just print the summary:  the number of zones, the maximum LBA (LBA of the
2354last logical block on the drive), and the value of the
2355.Dq same
2356field.
2357The
2358.Dq same
2359field describes whether the zones on the drive are all identical, all
2360different, or whether they are the same except for the last zone, etc.
2361.It script
2362Print the zones in a script friendly format.
2363The summary and column headings are omitted, the fields are separated by
2364commas, and the fields do not contain spaces.
2365The fields contain underscores where spaces would normally be used.
2366.El
2367.El
2368.It Ic epc
2369Issue
2370.Tn ATA
2371Extended Power Conditions (EPC) feature set commands.
2372This only works on
2373.Tn ATA
2374protocol drives, and will not work on
2375.Tn SCSI
2376protocol drives.
2377It will work on
2378.Tn SATA
2379drives behind a
2380.Tn SCSI
2381to
2382.Tn ATA
2383translation layer (SAT).
2384It may be helpful to read the ATA Command Set - 4 (ACS-4) description of
2385the Extended Power Conditions feature set, available at t13.org, to
2386understand the details of this particular
2387.Nm
2388subcommand.
2389.Bl -tag -width 6n
2390.It Fl c Ar cmd
2391Specify the epc subcommand
2392.Bl -tag -width 7n
2393.It restore
2394Restore drive power condition settings.
2395.Bl -tag -width 6n
2396.It Fl r Ar src
2397Specify the source for the restored power settings, either
2398.Dq default
2399or
2400.Dq saved .
2401This argument is required.
2402.It Fl s
2403Save the settings.
2404This only makes sense to specify when restoring from defaults.
2405.El
2406.It goto
2407Go to the specified power condition.
2408.Bl -tag -width 7n
2409.It Fl p Ar cond
2410Specify the power condition: Idle_a, Idle_b, Idle_c, Standby_y, Standby_z.
2411This argument is required.
2412.It Fl D
2413Specify delayed entry to the power condition.
2414The drive, if it supports this, can enter the power condition after the
2415command completes.
2416.It Fl H
2417Hold the power condition.
2418If the drive supports this option, it will hold the power condition and
2419reject all commands that would normally cause it to exit that power
2420condition.
2421.El
2422.It timer
2423Set the timer value for a power condition and enable or disable the
2424condition.
2425See the
2426.Dq list
2427display described below to see what the current timer settings are for each
2428Idle and Standby mode supported by the drive.
2429.Bl -tag -width 8n
2430.It Fl e
2431Enable the power condition.
2432One of
2433.Fl e
2434or
2435.Fl d
2436is required.
2437.It Fl d
2438Disable the power condition.
2439One of
2440.Fl d
2441or
2442.Fl e
2443is required.
2444.It Fl T Ar timer
2445Specify the timer in seconds.
2446The user may specify a timer as a floating point number with a maximum
2447supported resolution of tenths of a second.
2448Drives may or may not support sub-second timer values.
2449.It Fl p Ar cond
2450Specify the power condition: Idle_a, Idle_b, Idle_c, Standby_y, Standby_z.
2451This argument is required.
2452.It Fl s
2453Save the timer and power condition enable/disable state.
2454By default, if this option is not specified, only the current values for
2455this power condition will be affected.
2456.El
2457.It state
2458Enable or disable a particular power condition.
2459.Bl -tag -width 7n
2460.It Fl e
2461Enable the power condition.
2462One of
2463.Fl e
2464or
2465.Fl d
2466is required.
2467.It Fl d
2468Disable the power condition.
2469One of
2470.Fl d
2471or
2472.Fl e
2473is required.
2474.It Fl p Ar cond
2475Specify the power condition: Idle_a, Idle_b, Idle_c, Standby_y, Standby_z.
2476This argument is required.
2477.It Fl s
2478Save the power condition enable/disable state.
2479By default, if this option is not specified, only the current values for
2480this power condition will be affected.
2481.El
2482.It enable
2483Enable the Extended Power Condition (EPC) feature set.
2484.It disable
2485Disable the Extended Power Condition (EPC) feature set.
2486.It source
2487Specify the EPC power source.
2488.Bl -tag -width 6n
2489.It Fl S Ar src
2490Specify the power source, either
2491.Dq battery
2492or
2493.Dq nonbattery .
2494.El
2495.It status
2496Get the current status of several parameters related to the Extended Power
2497Condition (EPC) feature set, including whether APM and EPC are supported
2498and enabled, whether Low Power Standby is supported, whether setting the
2499EPC power source is supported, whether Low Power Standby is supported and
2500the current power condition.
2501.Bl -tag -width 3n
2502.It Fl P
2503Only report the current power condition.
2504Some drives will exit their current power condition if a command other than
2505the
2506.Tn ATA
2507CHECK POWER MODE command is received.
2508If this flag is specified,
2509.Nm
2510will only issue the
2511.Tn ATA
2512CHECK POWER MODE command to the drive.
2513.El
2514.It list
2515Display the
2516.Tn ATA
2517Power Conditions log (Log Address 0x08).
2518This shows the list of Idle and Standby power conditions the drive
2519supports, and a number of parameters about each condition, including
2520whether it is enabled and what the timer value is.
2521.El
2522.El
2523.It Ic timestamp
2524Issue REPORT TIMESTAMP or SET TIMESTAMP
2525.Tn SCSI
2526commands.
2527Either the
2528.Fl r
2529option or the
2530.Fl s
2531option must be specified.
2532.Bl -tag -width 6n
2533.It Fl r
2534Report the device's timestamp.
2535If no more arguments are specified, the timestamp will be reported using
2536the national representation of the date and time, followed by the time
2537zone.
2538.Bl -tag -width 9n
2539.It Fl f Ar format
2540Specify the strftime format string, as documented in strftime(3), to be used
2541to format the reported timestamp.
2542.It Fl m
2543Report the timestamp as milliseconds since the epoch.
2544.It Fl U
2545Report the timestamp using the national representation of the date and
2546time, but override the system time zone and use UTC instead.
2547.El
2548.El
2549.Bl -tag -width 6n
2550.It Fl s
2551Set the device's timestamp.
2552Either the
2553.Fl f
2554and
2555.Fl T
2556options or the
2557.Fl U
2558option must be specified.
2559.Bl -tag -width 9n
2560.It Fl f Ar format
2561Specify the strptime format string, as documented in strptime(3).
2562The time must also be specified with the
2563.Fl T
2564option.
2565.It Fl T Ar time
2566Provide the time in the format specified with the
2567.Fl f
2568option.
2569.It Fl U
2570Set the timestamp to the host system's time in UTC.
2571.El
2572.El
2573.It Ic devtype
2574Print out the device type for specified device.
2575.Bl -tag -width 10n
2576.It ata
2577An ATA device attached directly to an ATA controller
2578.It satl
2579An SATA device attached behind a SAS controller via SCSI-ATA Translation Layer (SATL)
2580.It scsi
2581A SCSI device
2582.It nvme
2583An directly attached NVMe device
2584.It mmcsd
2585An MMC or SD device attached via a mmcsd bus
2586.It none
2587No device type reported
2588.It unknown
2589Device type is unknown
2590.It illegal
2591A programming error occurred
2592.El
2593.It Ic depop
2594Commands necessary to support the depopulation (depop) of defective elements of a device
2595(typically heads for hard drives) or setting capacity point (typically used on
2596flash drives).
2597Issues either GET PHYSICAL ELEMENT STATUS, REMOVE ELEMENT AND TRUNCATE, or RESTORE
2598ELEMENT AND REBUILD command to manage storage elements of a drive.
2599Removal or restoration of elements may take up to a day to complete.
2600One of the
2601.Fl d ,
2602.Fl l ,
2603or
2604.Fl r
2605options must be specified.
2606These options are mutually exclusive.
2607Only SCSI drives are supported.
2608Changing the storage elements of a storage drive may result in the loss of all
2609data on that storage drive.
2610The drive may need to reinitialize after
2611.Fl d
2612or
2613.Fl r
2614commands.
2615The data on the drive is inaccessible until one of these commands complete.
2616Once one of these commands start, the drive is format corrupt until the
2617operation successfully completes.
2618While format corrupt, no read or write I/O is possible to the drive.
2619If the drive power cycles, it will remain format corrupt and the operation
2620must be restarted.
2621TEST UNIT READY or
2622.Dq camcontrol tur
2623can monitor an in-progress depop operation.
2624.Bl -tag -width 6n
2625.It Fl c Ar capacity
2626Specify the desired capacity point for the drive.
2627Valid only for the
2628.Fl d
2629flag.
2630.It Fl d
2631Remove the physical element from service or set the capacity point specified by the
2632.Fl e
2633or
2634.Fl c
2635flags.
2636The drive's capacity may be reduced by this operation.
2637.It Fl e Ar element
2638Specify the physical element to remove from service.
2639Valid only for the
2640.Fl d
2641flag.
2642.It Fl l
2643Report the current status of the physical elements of a drive.
2644.It Fl r
2645Restore all the eligible physical elements to service.
2646.El
2647.It Ic help
2648Print out verbose usage information.
2649.El
2650.Sh ENVIRONMENT
2651The
2652.Ev SCSI_MODES
2653variable allows the user to specify an alternate mode page format file.
2654.Pp
2655The
2656.Ev EDITOR
2657variable determines which text editor
2658.Nm
2659starts when editing mode pages.
2660.Sh FILES
2661.Bl -tag -width /usr/share/misc/scsi_modes -compact
2662.It Pa /usr/share/misc/scsi_modes
2663is the SCSI mode format database.
2664.It Pa /dev/xpt0
2665is the transport layer device.
2666.It Pa /dev/pass*
2667are the CAM application passthrough devices.
2668.El
2669.Sh EXAMPLES
2670.Dl camcontrol eject -n cd -u 1 -v
2671.Pp
2672Eject the CD from cd1, and print SCSI sense information if the command
2673fails.
2674.Pp
2675.Dl camcontrol tur da0
2676.Pp
2677Send the SCSI test unit ready command to da0.
2678The
2679.Nm
2680utility will report whether the disk is ready, but will not display sense
2681information if the command fails since the
2682.Fl v
2683switch was not specified.
2684.Bd -literal -offset indent
2685camcontrol tur da1 -E -C 4 -t 50 -Q head -v
2686.Ed
2687.Pp
2688Send a test unit ready command to da1.
2689Enable kernel error recovery.
2690Specify a retry count of 4, and a timeout of 50 seconds.
2691Enable sense
2692printing (with the
2693.Fl v
2694flag) if the command fails.
2695Since error recovery is turned on, the
2696disk will be spun up if it is not currently spinning.
2697The
2698.Tn SCSI
2699task attribute for the command will be set to Head of Queue.
2700The
2701.Nm
2702utility will report whether the disk is ready.
2703.Bd -literal -offset indent
2704camcontrol cmd -n cd -u 1 -v -c "3C 00 00 00 00 00 00 00 0e 00" \e
2705	-i 0xe "s1 i3 i1 i1 i1 i1 i1 i1 i1 i1 i1 i1"
2706.Ed
2707.Pp
2708Issue a READ BUFFER command (0x3C) to cd1.
2709Display the buffer size of cd1,
2710and display the first 10 bytes from the cache on cd1.
2711Display SCSI sense
2712information if the command fails.
2713.Bd -literal -offset indent
2714camcontrol cmd -n cd -u 1 -v -c "3B 00 00 00 00 00 00 00 0e 00" \e
2715	-o 14 "00 00 00 00 1 2 3 4 5 6 v v v v" 7 8 9 8
2716.Ed
2717.Pp
2718Issue a WRITE BUFFER (0x3B) command to cd1.
2719Write out 10 bytes of data,
2720not including the (reserved) 4 byte header.
2721Print out sense information if
2722the command fails.
2723Be very careful with this command, improper use may
2724cause data corruption.
2725.Bd -literal -offset indent
2726camcontrol modepage da3 -m 1 -e -P 3
2727.Ed
2728.Pp
2729Edit mode page 1 (the Read-Write Error Recover page) for da3, and save the
2730settings on the drive.
2731Mode page 1 contains a disk drive's auto read and
2732write reallocation settings, among other things.
2733.Pp
2734.Dl camcontrol rescan all
2735.Pp
2736Rescan all SCSI buses in the system for devices that have been added,
2737removed or changed.
2738.Pp
2739.Dl camcontrol rescan 0
2740.Pp
2741Rescan SCSI bus 0 for devices that have been added, removed or changed.
2742.Pp
2743.Dl camcontrol rescan 0:1:0
2744.Pp
2745Rescan SCSI bus 0, target 1, lun 0 to see if it has been added, removed, or
2746changed.
2747.Pp
2748.Dl camcontrol tags da5 -N 24
2749.Pp
2750Set the number of concurrent transactions for da5 to 24.
2751.Bd -literal -offset indent
2752camcontrol negotiate -n da -u 4 -T disable
2753.Ed
2754.Pp
2755Disable tagged queueing for da4.
2756.Bd -literal -offset indent
2757camcontrol negotiate -n da -u 3 -R 20.000 -O 15 -a
2758.Ed
2759.Pp
2760Negotiate a sync rate of 20MHz and an offset of 15 with da3.
2761Then send a
2762Test Unit Ready command to make the settings take effect.
2763.Bd -literal -offset indent
2764camcontrol smpcmd ses0 -v -r 4 "40 0 00 0" -R 1020 "s9 i1"
2765.Ed
2766.Pp
2767Send the SMP REPORT GENERAL command to ses0, and display the number of PHYs
2768it contains.
2769Display SMP errors if the command fails.
2770.Bd -literal -offset indent
2771camcontrol security ada0
2772.Ed
2773.Pp
2774Report security support and settings for ada0
2775.Bd -literal -offset indent
2776camcontrol security ada0 -U user -s MyPass
2777.Ed
2778.Pp
2779Enable security on device ada0 with the password MyPass
2780.Bd -literal -offset indent
2781camcontrol security ada0 -U user -e MyPass
2782.Ed
2783.Pp
2784Secure erase ada0 which has had security enabled with user password MyPass
2785.Pp
2786.Em WARNING! WARNING! WARNING!
2787.Pp
2788This will
2789.Em ERASE ALL
2790data from the device, so backup your data before using!
2791.Pp
2792This command can be used against an SSD drive to restoring it to
2793factory default write performance.
2794.Bd -literal -offset indent
2795camcontrol hpa ada0
2796.Ed
2797.Pp
2798Report HPA support and settings for ada0 (also reported via
2799identify).
2800.Bd -literal -offset indent
2801camcontrol hpa ada0 -s 10240
2802.Ed
2803.Pp
2804Enables HPA on ada0 setting the maximum reported sectors to 10240.
2805.Pp
2806.Em WARNING! WARNING! WARNING!
2807.Pp
2808This will
2809.Em PREVENT ACCESS
2810to all data on the device beyond this limit until HPA is disabled by setting
2811HPA to native max sectors of the device, which can only be done after a
2812power-on or hardware reset!
2813.Pp
2814.Em DO NOT
2815use this on a device which has an active filesystem!
2816.Bd -literal -offset indent
2817camcontrol persist da0 -v -i read_keys
2818.Ed
2819.Pp
2820This will read any persistent reservation keys registered with da0, and
2821display any errors encountered when sending the PERSISTENT RESERVE IN
2822.Tn SCSI
2823command.
2824.Bd -literal -offset indent
2825camcontrol persist da0 -v -o register -a -K 0x12345678
2826.Ed
2827.Pp
2828This will register the persistent reservation key 0x12345678 with da0,
2829apply that registration to all ports on da0, and display any errors that
2830occur when sending the PERSISTENT RESERVE OUT command.
2831.Bd -literal -offset indent
2832camcontrol persist da0 -v -o reserve -s lun -k 0x12345678 -T ex_ac
2833.Ed
2834.Pp
2835This will reserve da0 for the exlusive use of the initiator issuing the
2836command.
2837The scope of the reservation is the entire LUN.
2838Any errors sending the PERSISTENT RESERVE OUT command will be displayed.
2839.Bd -literal -offset indent
2840camcontrol persist da0 -v -i read_full
2841.Ed
2842.Pp
2843This will display the full status of all reservations on da0 and print out
2844status if there are any errors.
2845.Bd -literal -offset indent
2846camcontrol persist da0 -v -o release -k 0x12345678 -T ex_ac
2847.Ed
2848.Pp
2849This will release a reservation on da0 of the type ex_ac
2850(Exclusive Access).
2851The Reservation Key for this registration is 0x12345678.
2852Any errors that occur will be displayed.
2853.Bd -literal -offset indent
2854camcontrol persist da0 -v -o register -K 0x12345678 -S \e
2855	-I sas,0x1234567812345678 -I sas,0x8765432187654321
2856.Ed
2857.Pp
2858This will register the key 0x12345678 with da0, specifying that it applies
2859to the SAS initiators with SAS addresses 0x1234567812345678 and
28600x8765432187654321.
2861.Bd -literal -offset indent
2862camcontrol persist da0 -v -o register_move -k 0x87654321 \e
2863	-K 0x12345678 -U -p -R 2 -I fcp,0x1234567812345678
2864.Ed
2865.Pp
2866This will move the registration from the current initiator, whose
2867Registration Key is 0x87654321, to the Fibre Channel initiator with the
2868Fiber Channel World Wide Node Name 0x1234567812345678.
2869A new registration key, 0x12345678, will be registered for the initiator
2870with the Fibre Channel World Wide Node Name 0x1234567812345678, and the
2871current initiator will be unregistered from the target.
2872The reservation will be moved to relative target port 2 on the target
2873device.
2874The registration will persist across power losses.
2875.Bd -literal -offset indent
2876camcontrol attrib sa0 -v -i attr_values -p 1
2877.Ed
2878.Pp
2879This will read and decode the attribute values from partition 1 on the tape
2880in tape drive sa0, and will display any
2881.Tn SCSI
2882errors that result.
2883.Bd -literal -offset indent
2884camcontrol zone da0 -v -c rz -P summary
2885.Ed
2886.Pp
2887This will request the SMR zone list from disk da0, and print out a
2888summary of the zone parameters, and display any
2889.Tn SCSI
2890or
2891.Tn ATA
2892errors that result.
2893.Bd -literal -offset indent
2894camcontrol zone da0 -v -c rz -o reset
2895.Ed
2896.Pp
2897This will request the list of SMR zones that should have their write
2898pointer reset from the disk da0, and display any
2899.Tn SCSI
2900or
2901.Tn ATA
2902errors that result.
2903.Bd -literal -offset indent
2904camcontrol zone da0 -v -c rwp -l 0x2c80000
2905.Ed
2906.Pp
2907This will issue the Reset Write Pointer command to disk da0 for the zone
2908that starts at LBA 0x2c80000 and display any
2909.Tn SCSI
2910or
2911.Tn ATA
2912errors that result.
2913.Bd -literal -offset indent
2914camcontrol epc ada0 -c timer -T 60.1 -p Idle_a -e -s
2915.Ed
2916.Pp
2917Set the timer for the Idle_a power condition on drive
2918.Pa ada0
2919to 60.1 seconds, enable that particular power condition, and save the timer
2920value and the enabled state of the power condition.
2921.Bd -literal -offset indent
2922camcontrol epc da4 -c goto -p Standby_z -H
2923.Ed
2924.Pp
2925Tell drive
2926.Pa da4
2927to go to the Standby_z power state (which is
2928the drive's lowest power state) and hold in that state until it is
2929explicitly released by another
2930.Cm goto
2931command.
2932.Bd -literal -offset indent
2933camcontrol epc da2 -c status -P
2934.Ed
2935.Pp
2936Report only the power state of
2937drive
2938.Pa da2 .
2939Some drives will power up in response to the commands sent by the
2940.Pa status
2941subcommand, and the
2942.Fl P
2943option causes
2944.Nm
2945to only send the
2946.Tn ATA
2947CHECK POWER MODE command, which should not trigger a change in the drive's
2948power state.
2949.Bd -literal -offset indent
2950camcontrol epc ada0 -c list
2951.Ed
2952.Pp
2953Display the ATA Power Conditions log (Log Address 0x08) for
2954drive
2955.Pa ada0 .
2956.Bd -literal -offset indent
2957camcontrol timestamp sa0 -s -f "%a, %d %b %Y %T %z" \e
2958	-T "Wed, 26 Oct 2016 21:43:57 -0600"
2959.Ed
2960.Pp
2961Set the timestamp of drive
2962.Pa sa0
2963using a
2964.Xr strptime 3
2965format string followed by a time string
2966that was created using this format string.
2967.Sh SEE ALSO
2968.Xr cam 3 ,
2969.Xr cam_cdbparse 3 ,
2970.Xr cam 4 ,
2971.Xr pass 4 ,
2972.Xr xpt 4 ,
2973.Xr diskinfo 8 ,
2974.Xr trim 8 ,
2975.Xr zonectl 8
2976.Sh HISTORY
2977The
2978.Nm
2979utility first appeared in
2980.Fx 3.0 .
2981.Pp
2982The mode page editing code and arbitrary SCSI command code are based upon
2983code in the old
2984.Xr scsi 8
2985utility and
2986.Xr scsi 3
2987library, written by Julian Elischer and Peter Dufault.
2988The
2989.Xr scsi 8
2990program first appeared in
2991.Bx 386 0.1.2.4 ,
2992and first appeared in
2993.Fx
2994in
2995.Fx 2.0.5 .
2996.Sh AUTHORS
2997.An Kenneth Merry Aq Mt ken@FreeBSD.org
2998.Sh BUGS
2999The code that parses the generic command line arguments does not know that
3000some of the subcommands take multiple arguments.
3001So if, for instance, you
3002tried something like this:
3003.Bd -literal -offset indent
3004camcontrol cmd -n da -u 1 -c "00 00 00 00 00 v" 0x00 -v
3005.Ed
3006.Pp
3007The sense information from the test unit ready command would not get
3008printed out, since the first
3009.Xr getopt 3
3010call in
3011.Nm
3012bails out when it sees the second argument to
3013.Fl c
3014(0x00),
3015above.
3016Fixing this behavior would take some gross code, or changes to the
3017.Xr getopt 3
3018interface.
3019The best way to circumvent this problem is to always make sure
3020to specify generic
3021.Nm
3022arguments before any command-specific arguments.
3023