[mirror_zfs-debian.git] / tests / zfs-tests / tests / functional / mmp / mmp_write_uberblocks.ksh

#!/bin/ksh -p
#
# CDDL HEADER START
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source.  A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# CDDL HEADER END
#

#
# Copyright (c) 2017 by Lawrence Livermore National Security, LLC.
#

# DESCRIPTION:
#	Verify MMP behaves correctly when failing to write uberblocks.
#
# STRATEGY:
#	1. Create a mirrored pool and enable multihost
#	2. Inject a 50% failure rate when writing uberblocks to a device
#	3. Delay briefly for additional MMP writes to complete
#	4. Verify the failed uberblock writes did not prevent MMP updates
#

. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/mmp/mmp.cfg
. $STF_SUITE/tests/functional/mmp/mmp.kshlib

verify_runnable "both"

function cleanup
{
	zinject -c all
	default_cleanup_noexit
	log_must mmp_clear_hostid
}

log_assert "mmp behaves correctly when failing to write uberblocks."
log_onexit cleanup

log_must mmp_set_hostid $HOSTID1
default_mirror_setup_noexit $DISKS
log_must zpool set multihost=on $TESTPOOL
log_must zinject -d ${DISK[0]} -e io -T write -f 50 $TESTPOOL -L uber
clear_mmp_history
uber_count=$(count_mmp_writes $TESTPOOL 3)

if [ $uber_count -eq 0 ]; then
	log_fail "mmp writes did not occur when uberblock IO errors injected"
fi

log_pass "mmp correctly wrote uberblocks when IO errors injected"
Commit	Line	Data
cae5b340 AX	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) 2017 by Lawrence Livermore National Security, LLC.
	19	#
	20
	21	# DESCRIPTION:
	22	# Verify MMP behaves correctly when failing to write uberblocks.
	23	#
	24	# STRATEGY:
	25	# 1. Create a mirrored pool and enable multihost
	26	# 2. Inject a 50% failure rate when writing uberblocks to a device
	27	# 3. Delay briefly for additional MMP writes to complete
	28	# 4. Verify the failed uberblock writes did not prevent MMP updates
	29	#
	30
	31	. $STF_SUITE/include/libtest.shlib
	32	. $STF_SUITE/tests/functional/mmp/mmp.cfg
	33	. $STF_SUITE/tests/functional/mmp/mmp.kshlib
	34
	35	verify_runnable "both"
	36
	37	function cleanup
	38	{
	39	zinject -c all
	40	default_cleanup_noexit
	41	log_must mmp_clear_hostid
	42	}
	43
	44	log_assert "mmp behaves correctly when failing to write uberblocks."
	45	log_onexit cleanup
	46
	47	log_must mmp_set_hostid $HOSTID1
	48	default_mirror_setup_noexit $DISKS
	49	log_must zpool set multihost=on $TESTPOOL
	50	log_must zinject -d ${DISK[0]} -e io -T write -f 50 $TESTPOOL -L uber
	51	clear_mmp_history
42f7b73b	52	uber_count=$(count_mmp_writes $TESTPOOL 3)
cae5b340 AX	53
	54	if [ $uber_count -eq 0 ]; then
	55	log_fail "mmp writes did not occur when uberblock IO errors injected"
	56	fi
	57
	58	log_pass "mmp correctly wrote uberblocks when IO errors injected"