diff options
Diffstat (limited to 'sys/contrib/openzfs/tests/zfs-tests/tests/functional/persist_l2arc/persist_l2arc_006_pos.ksh')
| -rwxr-xr-x | sys/contrib/openzfs/tests/zfs-tests/tests/functional/persist_l2arc/persist_l2arc_006_pos.ksh | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/tests/zfs-tests/tests/functional/persist_l2arc/persist_l2arc_006_pos.ksh b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/persist_l2arc/persist_l2arc_006_pos.ksh new file mode 100755 index 000000000000..55e9f9585c0e --- /dev/null +++ b/sys/contrib/openzfs/tests/zfs-tests/tests/functional/persist_l2arc/persist_l2arc_006_pos.ksh @@ -0,0 +1,98 @@ +#!/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) 2020, George Amanakis. All rights reserved. +# + +. $STF_SUITE/include/libtest.shlib +. $STF_SUITE/tests/functional/persist_l2arc/persist_l2arc.cfg + +# +# DESCRIPTION: +# Off/onlining an L2ARC device results in rebuilding L2ARC, vdev not +# present. +# +# STRATEGY: +# 1. Create pool with a cache device. +# 2. Create a random file in that pool and random read for 30 sec. +# 3. Read the amount of log blocks written from the header of the +# L2ARC device. +# 4. Offline the L2ARC device and export pool. +# 5. Import pool and online the L2ARC device. +# 6. Read the amount of log blocks rebuilt in arcstats and compare to +# (3). +# 7. Check if the labels of the L2ARC device are intact. +# + +verify_runnable "global" + +log_assert "Off/onlining an L2ARC device results in rebuilding L2ARC, vdev not present." + +function cleanup +{ + if poolexists $TESTPOOL ; then + destroy_pool $TESTPOOL + fi + + log_must set_tunable32 L2ARC_NOPREFETCH $noprefetch + log_must set_tunable32 L2ARC_REBUILD_BLOCKS_MIN_L2SIZE \ + $rebuild_blocks_min_l2size +} +log_onexit cleanup + +# L2ARC_NOPREFETCH is set to 0 to let L2ARC handle prefetches +typeset noprefetch=$(get_tunable L2ARC_NOPREFETCH) +typeset rebuild_blocks_min_l2size=$(get_tunable L2ARC_REBUILD_BLOCKS_MIN_L2SIZE) +log_must set_tunable32 L2ARC_NOPREFETCH 0 +log_must set_tunable32 L2ARC_REBUILD_BLOCKS_MIN_L2SIZE 0 + +typeset fill_mb=800 +typeset cache_sz=$(( floor($fill_mb / 2) )) +export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M + +log_must truncate -s ${cache_sz}M $VDEV_CACHE + +log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE + +log_must fio $FIO_SCRIPTS/mkfiles.fio +log_must fio $FIO_SCRIPTS/random_reads.fio + +log_must zpool offline $TESTPOOL $VDEV_CACHE +log_must zpool export $TESTPOOL + +sleep 5 + +typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks) + +typeset l2_dh_log_blk=$(zdb -l $VDEV_CACHE | grep log_blk_count | \ + awk '{print $2}') + +log_must zpool import -d $VDIR $TESTPOOL +log_must zpool online $TESTPOOL $VDEV_CACHE + +sleep 5 + +typeset l2_rebuild_log_blk_end=$(get_arcstat l2_rebuild_log_blks) + +log_must test $l2_dh_log_blk -eq $(( $l2_rebuild_log_blk_end - $l2_rebuild_log_blk_start )) +log_must test $l2_dh_log_blk -gt 0 + +log_must zdb -lq $VDEV_CACHE + +log_must zpool destroy -f $TESTPOOL + +log_pass "Off/onlining an L2ARC device results in rebuilding L2ARC, vdev not present." |