1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or https://opensource.org/licenses/CDDL-1.0.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
25#
26
27. $STF_SUITE/include/libtest.shlib
28. $STF_SUITE/tests/functional/cli_root/zpool_reopen/zpool_reopen.shlib
29. $STF_SUITE/tests/functional/cli_root/zpool_scrub/zpool_scrub.cfg
30
31#
32# DESCRIPTION:
33# Scrubbing a pool with offline devices correctly preserves DTL entries
34#
35# STRATEGY:
36# 1. Create the pool
37# 2. Offline the first device
38# 3. Write to the pool
39# 4. Scrub the pool
40# 5. Online the first device and offline the second device
41# 6. Scrub the pool again
42# 7. Verify data integrity
43#
44# NOTE:
45# Ported from script used to reproduce issue #5806
46#
47
48verify_runnable "global"
49
50function cleanup
51{
52	poolexists $TESTPOOL2 && destroy_pool $TESTPOOL2
53	log_must rm -f $DISK1 $DISK2 $DISK3 $DISK4
54}
55
56#
57# Update to [online|offline] $device status on $pool synchronously
58#
59function zpool_do_sync # <status> <pool> <device>
60{
61	status="$1"
62	pool="$2"
63	device="$3"
64
65	if [[ $status != "online" && $status != "offline" ]]; then
66		log_fail "zpool_do_sync: invalid status $status"
67	fi
68
69	log_must zpool $status $pool $device
70	for i in {1..10}; do
71		check_state $pool $device $status && return 0
72	done
73	log_fail "Failed to $status device $device"
74}
75
76#
77# Start a scrub on $pool and wait for its completion
78#
79function zpool_scrub_sync # <pool>
80{
81	pool="$1"
82
83	log_must zpool scrub $pool
84	while ! is_pool_scrubbed $pool; do
85		sleep 1
86	done
87}
88
89log_assert "Scrubbing a pool with offline devices correctly preserves DTLs"
90log_onexit cleanup
91
92DEVSIZE='128m'
93FILESIZE='100m'
94TESTDIR="$TEST_BASE_DIR/zpool_scrub_offline_device"
95DISK1="$TEST_BASE_DIR/zpool_disk1.dat"
96DISK2="$TEST_BASE_DIR/zpool_disk2.dat"
97DISK3="$TEST_BASE_DIR/zpool_disk3.dat"
98DISK4="$TEST_BASE_DIR/zpool_disk4.dat"
99RESILVER_TIMEOUT=40
100
101# 1. Create the pool
102log_must truncate -s $DEVSIZE $DISK1
103log_must truncate -s $DEVSIZE $DISK2
104log_must truncate -s $DEVSIZE $DISK3
105log_must truncate -s $DEVSIZE $DISK4
106poolexists $TESTPOOL2 && destroy_pool $TESTPOOL2
107log_must zpool create -O mountpoint=$TESTDIR $TESTPOOL2 \
108    raidz2 $DISK1 $DISK2 $DISK3 $DISK4
109
110# 2. Offline the first device
111zpool_do_sync 'offline' $TESTPOOL2 $DISK1
112
113# 3. Write to the pool
114log_must mkfile $FILESIZE "$TESTDIR/data.bin"
115
116# 4. Scrub the pool
117zpool_scrub_sync $TESTPOOL2
118
119# 5. Online the first device and offline the second device
120zpool_do_sync 'online' $TESTPOOL2 $DISK1
121zpool_do_sync 'offline' $TESTPOOL2 $DISK2
122log_must wait_for_resilver_end $TESTPOOL2 $RESILVER_TIMEOUT
123
124# 6. Scrub the pool again
125zpool_scrub_sync $TESTPOOL2
126
127# 7. Verify data integrity
128cksum=$(zpool status $TESTPOOL2 | awk 'L{print $NF;L=0} /CKSUM$/{L=1}')
129if [[ $cksum != 0 ]]; then
130	log_fail "Unexpected CKSUM errors found on $TESTPOOL2 ($cksum)"
131fi
132
133log_pass "Scrubbing a pool with offline devices correctly preserves DTLs"
134