1#!/bin/ksh -p
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22
23#
24# Copyright (c) 2021 by vStack. All rights reserved.
25#
26
27. $STF_SUITE/include/libtest.shlib
28
29#
30# DESCRIPTION:
31#	'zpool attach poolname raidz ...' should reject device attach if pool
32#	is in checkpointed state. If checkpoint creation requested on
33#	expanding pool, the request should be rejected.
34
35#
36# STRATEGY:
37#	1. Create block device files for the test raidz pool.
38#	2. Create pool and checkpoint it.
39#	3. Try to expand raidz, ensure that request rejected.
40#	4. Recreate the pool.
41#	5. Apply raidz expansion.
42#	6. Ensure, that checkpoint cannot be created.
43
44typeset -r devs=6
45typeset -r dev_size_mb=512
46
47typeset -a disks
48
49prefetch_disable=$(get_tunable PREFETCH_DISABLE)
50
51function cleanup
52{
53	poolexists "$TESTPOOL" && log_must_busy zpool destroy "$TESTPOOL"
54
55	for i in {0..$devs}; do
56		log_must rm -f "$TEST_BASE_DIR/dev-$i"
57	done
58
59	log_must set_tunable32 PREFETCH_DISABLE $prefetch_disable
60	log_must set_tunable64 RAIDZ_EXPAND_MAX_REFLOW_BYTES 0
61}
62
63log_onexit cleanup
64
65log_must set_tunable32 PREFETCH_DISABLE 1
66
67# Disk files which will be used by pool
68for i in {0..$(($devs))}; do
69	device=$TEST_BASE_DIR/dev-$i
70	log_must truncate -s ${dev_size_mb}M $device
71	disks[${#disks[*]}+1]=$device
72done
73
74nparity=1
75raid=raidz$nparity
76pool=$TESTPOOL
77opts="-o cachefile=none"
78
79# case 1: checkpoint exist, try to expand
80log_must zpool create -f $opts $pool $raid ${disks[1..$(($devs-1))]}
81log_must zfs set primarycache=metadata $pool
82log_must zpool checkpoint $pool
83log_mustnot zpool attach $pool ${raid}-0 ${disks[$devs]}
84log_must zpool destroy $pool
85
86#
87# case 2: expansion in progress, try to checkpoint
88#
89# Sets pause point at 25% of allocated space so that we know an
90# expansion is still in progress when we attempt the checkpoint
91#
92log_must zpool create -f $opts $pool $raid ${disks[1..$(($devs-1))]}
93log_must zfs set primarycache=metadata $pool
94log_must zfs create $pool/fs
95log_must fill_fs /$pool/fs 1 512 100 1024 R
96allocated=$(zpool list -Hp -o allocated $pool)
97log_must set_tunable64 RAIDZ_EXPAND_MAX_REFLOW_BYTES $((allocated / 4))
98log_must zpool attach $pool ${raid}-0 ${disks[$devs]}
99log_mustnot zpool checkpoint $pool
100log_must zpool destroy $pool
101
102log_pass "raidz expansion test succeeded."
103