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