1#! /bin/ksh -p
2#
3# CDDL HEADER START
4#
5# This file and its contents are supplied under the terms of the
6# Common Development and Distribution License ("CDDL"), version 1.0.
7# You may only use this file in accordance with the terms of version
8# 1.0 of the CDDL.
9#
10# A full copy of the text of the CDDL should have accompanied this
11# source.  A copy of the CDDL is also available via the Internet at
12# http://www.illumos.org/license/CDDL.
13#
14# CDDL HEADER END
15#
16
17#
18# Copyright (c) 2018 by Delphix. All rights reserved.
19#
20
21. $STF_SUITE/include/libtest.shlib
22. $STF_SUITE/tests/functional/removal/removal.kshlib
23
24#
25# DESCRIPTION:
26#
27# Ensure that cancelling a removal midway does not cause any
28# issues like cause a panic.
29#
30# STRATEGY:
31#
32# 1. Create a pool with one vdev and do some writes on it.
33# 2. Add a new vdev to the pool and start the removal of
34#    the first vdev.
35# 3. Cancel the removal after some segments have been copied
36#    over to the new vdev.
37# 4. Run zdb to ensure the on-disk state of the pool is ok.
38#
39
40function cleanup
41{
42	#
43	# Reset tunable.
44	#
45	log_must set_tunable32 REMOVAL_SUSPEND_PROGRESS 0
46}
47log_onexit cleanup
48
49SAMPLEFILE=/$TESTDIR/00
50
51#
52# Create pool with one disk.
53#
54log_must default_setup_noexit "$REMOVEDISK"
55
56#
57# Create a file of size 1GB and then do some random writes.
58# Since randwritecomp does 8K writes we do 25000 writes
59# which means we write ~200MB to the vdev.
60#
61log_must mkfile -n 1g $SAMPLEFILE
62log_must randwritecomp $SAMPLEFILE 25000
63
64#
65# Add second device where all the data will be evacuated.
66#
67log_must zpool add -f $TESTPOOL $NOTREMOVEDISK
68
69#
70# Block removal.
71#
72log_must set_tunable32 REMOVAL_SUSPEND_PROGRESS 1
73
74#
75# Start removal.
76#
77log_must zpool remove $TESTPOOL $REMOVEDISK
78
79#
80# Only for debugging purposes in test logs.
81#
82log_must zpool status $TESTPOOL
83
84#
85# Cancel removal.
86#
87log_must zpool remove -s $TESTPOOL
88
89#
90# Verify on-disk state.
91#
92log_must zdb $TESTPOOL
93
94log_pass "Device removal thread cancelled successfully."
95