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# Copyright 2019 Joyent, Inc. 20# 21 22# DESCRIPTION: 23# When multihost=off ensure that leaf vdev uberblocks are not updated. 24# 25# STRATEGY: 26# 1. Set multihost=off (disables mmp) 27# 2. Set zfs_txg_timeout to large value 28# 3. Create a zpool 29# 4. Find the current "best" uberblock 30# 5. Sleep for enough time for uberblocks to change 31# 6. Find the current "best" uberblock 32# 7. If the uberblock changed, fail 33# 8. Set multihost=on 34# 9. Sleep for enough time for uberblocks to change 35# 10. Find the current "best" uberblock 36# 11. If uberblocks didn't change, fail 37# 38 39. $STF_SUITE/include/libtest.shlib 40. $STF_SUITE/tests/functional/mmp/mmp.cfg 41. $STF_SUITE/tests/functional/mmp/mmp.kshlib 42 43verify_runnable "both" 44 45function cleanup 46{ 47 default_cleanup_noexit 48 log_must set_tunable32 zfs_txg_timeout $TXG_TIMEOUT_DEFAULT 49 log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_DEFAULT 50 log_must rm -f $PREV_UBER $CURR_UBER 51 log_must mmp_clear_hostid 52} 53 54log_assert "mmp thread won't write uberblocks with multihost=off" 55log_onexit cleanup 56 57log_must set_tunable64 zfs_multihost_interval $MMP_INTERVAL_MIN 58log_must set_tunable32 zfs_txg_timeout $TXG_TIMEOUT_LONG 59log_must mmp_set_hostid $HOSTID1 60 61default_setup_noexit $DISK 62log_must zpool set multihost=off $TESTPOOL 63 64log_must zdb -u $TESTPOOL > $PREV_UBER 65log_must sleep 5 66log_must zdb -u $TESTPOOL > $CURR_UBER 67 68if ! diff "$CURR_UBER" "$PREV_UBER"; then 69 log_fail "mmp thread has updated an uberblock" 70fi 71 72log_must zpool set multihost=on $TESTPOOL 73log_must sleep 5 74log_must zdb -u $TESTPOOL > $CURR_UBER 75 76if diff "$CURR_UBER" "$PREV_UBER"; then 77 log_fail "mmp failed to update uberblocks" 78fi 79 80log_pass "mmp thread won't write uberblocks with multihost=off passed" 81