1.\" 2.\" Copyright (c) 2004 3ware, Inc. 3.\" Copyright (c) 2000 BSDi 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.\" $FreeBSD: src/share/man/man4/twa.4,v 1.4 2005/02/27 13:14:28 brueffer Exp $ 27.\" $DragonFly: src/share/man/man4/twa.4,v 1.1 2006/04/30 18:46:39 swildner Exp $ 28.\" 29.Dd August 15, 2004 30.Dt TWA 4 31.Os 32.Sh NAME 33.Nm twa 34.Nd 3ware 9000 series SATA RAID controllers driver 35.Sh SYNOPSIS 36.Cd "device twa" 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for the AMCC's 3ware 9000 series SATA controllers. 41.Pp 42These controllers are available in 4, 8 or 12-port configurations, 43and support the following RAID levels: 0, 1, 10, 5, 50. 44The device nodes for the controllers are of the form 45.Pa /dev/twa Ns Ar X , 46where 47.Ar X 48is the controller number. 49The driver is implemented as a SCSI SIM 50under CAM, and, as such, the logical units that it controls are accessible 51via the device nodes, 52.Pa /dev/da Ns Ar Y , 53where 54.Ar Y 55is the logical unit number. 56.Sh HARDWARE 57The 58.Nm 59driver supports the following SATA RAID controllers: 60.Pp 61.Bl -bullet -compact 62.It 63AMCC's 3ware 9500S-4LP 64.It 65AMCC's 3ware 9500S-8 66.It 67AMCC's 3ware 9500S-8MI 68.It 69AMCC's 3ware 9500S-12 70.It 71AMCC's 3ware 9500S-12MI 72.El 73.Sh DIAGNOSTICS 74Whenever the driver encounters a command failure, it prints out an error code in 75the format: 76.Qq Li "ERROR: (<error source>: <error code>):" , 77followed by a text description of the error. 78There are other error messages and warnings that the 79driver prints out, depending on the kinds of errors that it encounters. 80If the driver is compiled with 81.Dv TWA_DEBUG 82defined, it prints out a whole bunch of debug 83messages, the quantity of which varies depending on the value assigned to 84.Dv TWA_DEBUG 85(0 to 10). 86.Sh AUTHORS 87The 88.Nm 89driver and manpage were written by 90.An Vinod Kashyap Aq vkashyap@FreeBSD.org . 91