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