1#!/bin/ksh -p
2
3#
4# This file and its contents are supplied under the terms of the
5# Common Development and Distribution License ("CDDL"), version 1.0.
6# You may only use this file in accordance with the terms of version
7# 1.0 of the CDDL.
8#
9# A full copy of the text of the CDDL should have accompanied this
10# source.  A copy of the CDDL is also available via the Internet at
11# http://www.illumos.org/license/CDDL.
12#
13
14#
15# Copyright (c) 2018 by Delphix. All rights reserved.
16#
17
18. $STF_SUITE/tests/functional/alloc_class/alloc_class.kshlib
19
20#
21# DESCRIPTION:
22#	Removing a special device from a pool succeeds.
23#
24
25verify_runnable "global"
26
27#
28# Verify the file identified by the input <inode> is written on a special vdev
29# According to the pool layout used in this test vdev_id 3 and 4 are special
30# XXX: move this function to libtest.shlib once we get "Vdev Properties"
31#
32function file_in_special_vdev # <dataset> <inode>
33{
34	typeset dataset="$1"
35	typeset inum="$2"
36	typeset num_normal=$(echo $ZPOOL_DISKS | wc -w | xargs)
37
38	zdb -dddddd $dataset $inum | awk -v d=$num_normal '{
39# find DVAs from string "offset level dva" only for L0 (data) blocks
40if (match($0,"L0 [0-9]+")) {
41   dvas[0]=$3
42   dvas[1]=$4
43   dvas[2]=$5
44   for (i = 0; i < 3; ++i) {
45      if (match(dvas[i],"([^:]+):.*")) {
46         dva = substr(dvas[i], RSTART, RLENGTH);
47         # parse DVA from string "vdev:offset:asize"
48         if (split(dva,arr,":") != 3) {
49            print "Error parsing DVA: <" dva ">";
50            exit 1;
51         }
52         # verify vdev is "special"
53         if (arr[1] < d) {
54            exit 1;
55         }
56      }
57   }
58}}'
59}
60
61#
62# Check that device removal works for special class vdevs
63#
64function check_removal
65{
66	#
67	# Create a non-raidz pool so we can remove top-level vdevs
68	#
69	log_must disk_setup
70	log_must zpool create $TESTPOOL $ZPOOL_DISKS \
71	    special $CLASS_DISK0 special $CLASS_DISK1
72	log_must display_status "$TESTPOOL"
73
74	#
75	# Generate some metadata and small blocks in the special class vdev
76	# before removal
77	#
78	typeset -l i=1
79	typeset -l blocks=25
80
81	log_must zfs create -o special_small_blocks=32K -o recordsize=32K \
82	    $TESTPOOL/$TESTFS
83	for i in 1 2 3 4; do
84		log_must dd if=/dev/urandom of=/$TESTPOOL/$TESTFS/testfile.$i \
85		    bs=1M count=$blocks
86		((blocks = blocks + 25))
87	done
88	log_must sync_pool $TESTPOOL
89	log_must zpool list -v $TESTPOOL
90
91	# Verify the files were written in the special class vdevs
92	for i in 1 2 3 4; do
93		dataset="$TESTPOOL/$TESTFS"
94		inum="$(get_objnum /$TESTPOOL/$TESTFS/testfile.$i)"
95		log_must file_in_special_vdev $dataset $inum
96	done
97
98	log_must zpool remove $TESTPOOL $CLASS_DISK0
99
100	sleep 5
101	log_must sync_pool $TESTPOOL
102	sleep 1
103
104	log_must zdb -bbcc $TESTPOOL
105	log_must zpool list -v $TESTPOOL
106	log_must zpool destroy -f "$TESTPOOL"
107	log_must disk_cleanup
108}
109
110claim="Removing a special device from a pool succeeds."
111
112log_assert $claim
113log_onexit cleanup
114
115typeset CLASS_DEVSIZE=$CLASS_DEVSIZE
116for CLASS_DEVSIZE in $CLASS_DEVSIZE $ZPOOL_DEVSIZE; do
117	typeset ZPOOL_DISKS=$ZPOOL_DISKS
118	for ZPOOL_DISKS in "$ZPOOL_DISKS" $ZPOOL_DISK0; do
119		check_removal
120	done
121done
122
123log_pass $claim
124