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. $STF_SUITE/tests/functional/removal/removal.kshlib
23
24#
25# BACKGROUND:
26#
27# ztest hit an issue where it ran zdb and zdb failed because
28# it couldn't access some indirect mappings at the end of a
29# vdev. The issue was that the vdev's ms_shift had changed after
30# it was removed by the addition of another vdev. This test is
31# a regression test for ensuring this case doesn't come up again.
32#
33
34
35TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
36DISK0=$TMPDIR/dsk0
37DISK1=$TMPDIR/dsk1
38DISK2=$TMPDIR/dsk2
39
40log_must mkfile -n $MINVDEVSIZE $DISK0
41log_must mkfile -n $(($MINVDEVSIZE * 3)) $DISK1
42log_must mkfile -n $MINVDEVSIZE $DISK2
43
44function cleanup
45{
46	default_cleanup_noexit
47	log_must rm -f $DISK0 $DISK1 $DISK2
48}
49
50#
51# Setup the pool with one disk .
52#
53log_must default_setup_noexit "$DISK0"
54log_onexit cleanup
55
56#
57# Expand vdev.
58#
59log_must truncate -s $(($MINVDEVSIZE * 2)) $DISK0
60log_must zpool reopen $TESTPOOL
61log_must zpool online -e $TESTPOOL $DISK0
62
63#
64# Fill up the whole vdev.
65#
66dd if=/dev/urandom of=$TESTDIR/$TESTFILE0 bs=8M
67
68#
69# Add another vdev and remove the first vdev creating indirect
70# mappings for nearly all the allocatable space from the first
71# vdev. Wait for removal to finish.
72#
73log_must zpool add $TESTPOOL $DISK1
74log_must zpool remove $TESTPOOL $DISK0
75log_must wait_for_removal $TESTPOOL
76
77#
78# Add a new vdev that will trigger a change in the config.
79# Run sync once to ensure that the config actually changed.
80#
81log_must zpool add $TESTPOOL $DISK2
82log_must sync
83
84#
85# Ensure that zdb does not find any problems with this.
86#
87log_must zdb $TESTPOOL
88
89log_pass "Removal of expanded vdev doesn't cause any problems."
90