144 lines
3.9 KiB
Bash
Executable File
144 lines
3.9 KiB
Bash
Executable File
#!/bin/ksh -p
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#
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# CDDL HEADER START
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#
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# This file and its contents are supplied under the terms of the
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# Common Development and Distribution License ("CDDL"), version 1.0.
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# You may only use this file in accordance with the terms of version
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# 1.0 of the CDDL.
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#
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# A full copy of the text of the CDDL should have accompanied this
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# source. A copy of the CDDL is also available via the Internet at
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# http://www.illumos.org/license/CDDL.
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2020, George Amanakis. All rights reserved.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/l2arc/l2arc.cfg
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#
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# DESCRIPTION:
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# Off/onlining an L2ARC device restores all written blocks, vdev present.
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#
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# STRATEGY:
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# 1. Create pool with a cache device.
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# 2. Create a random file in that pool and random read for 10 sec.
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# 3. Read the amount of log blocks written from the header of the
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# L2ARC device.
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# 4. Offline the L2ARC device.
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# 5. Online the L2ARC device.
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# 6. Read the amount of log blocks rebuilt in arcstats and compare to
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# (3).
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# 7. Create another random file in that pool and random read for 10 sec.
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# 8. Read the amount of log blocks written from the header of the
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# L2ARC device.
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# 9. Offline the L2ARC device.
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# 10. Online the L2ARC device.
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# 11. Read the amount of log blocks rebuilt in arcstats and compare to
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# (7).
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# 12. Check if the amount of log blocks on the cache device has
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# increased.
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# 13. Export the pool.
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# 14. Read the amount of log blocks on the cache device.
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# 15. Import the pool.
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# 16. Read the amount of log blocks rebuilt in arcstats and compare to
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# (14).
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# 17. Check if the labels of the L2ARC device are intact.
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#
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verify_runnable "global"
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log_assert "Off/onlining an L2ARC device restores all written blocks , vdev present."
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function cleanup
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{
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if poolexists $TESTPOOL ; then
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destroy_pool $TESTPOOL
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fi
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log_must set_tunable32 L2ARC_NOPREFETCH $noprefetch
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}
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log_onexit cleanup
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# L2ARC_NOPREFETCH is set to 0 to let L2ARC handle prefetches
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typeset noprefetch=$(get_tunable L2ARC_NOPREFETCH)
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log_must set_tunable32 L2ARC_NOPREFETCH 0
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typeset fill_mb=400
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typeset cache_sz=$(( 3 * $fill_mb ))
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export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M
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log_must truncate -s ${cache_sz}M $VDEV_CACHE
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log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE
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log_must fio $FIO_SCRIPTS/mkfiles.fio
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log_must fio $FIO_SCRIPTS/random_reads.fio
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log_must zpool offline $TESTPOOL $VDEV_CACHE
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sleep 2
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typeset l2_dh_log_blk1=$(zdb -l $VDEV_CACHE | grep log_blk_count | \
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awk '{print $2}')
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typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
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log_must zpool online $TESTPOOL $VDEV_CACHE
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sleep 5
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typeset l2_rebuild_log_blk_end=$(get_arcstat l2_rebuild_log_blks)
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log_must test $l2_dh_log_blk1 -eq $(( $l2_rebuild_log_blk_end - $l2_rebuild_log_blk_start ))
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log_must test $l2_dh_log_blk1 -gt 0
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log_must fio $FIO_SCRIPTS/mkfiles.fio
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log_must fio $FIO_SCRIPTS/random_reads.fio
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log_must zpool offline $TESTPOOL $VDEV_CACHE
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sleep 2
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typeset l2_dh_log_blk2=$(zdb -l $VDEV_CACHE | grep log_blk_count | \
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awk '{print $2}')
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typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
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log_must zpool online $TESTPOOL $VDEV_CACHE
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sleep 5
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typeset l2_rebuild_log_blk_end=$(get_arcstat l2_rebuild_log_blks)
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log_must test $l2_dh_log_blk2 -eq $(( $l2_rebuild_log_blk_end - $l2_rebuild_log_blk_start ))
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log_must test $l2_dh_log_blk2 -gt $l2_dh_log_blk1
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log_must zpool export $TESTPOOL
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typeset l2_dh_log_blk3=$(zdb -l $VDEV_CACHE | grep log_blk_count | \
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awk '{print $2}')
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typeset l2_rebuild_log_blk_start=$(get_arcstat l2_rebuild_log_blks)
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log_must zpool import -d $VDIR $TESTPOOL
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sleep 5
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typeset l2_rebuild_log_blk_end=$(get_arcstat l2_rebuild_log_blks)
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log_must test $l2_dh_log_blk3 -eq $(( $l2_rebuild_log_blk_end - $l2_rebuild_log_blk_start ))
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log_must test $l2_dh_log_blk3 -gt 0
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log_must zdb -lq $VDEV_CACHE
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log_must zpool destroy -f $TESTPOOL
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log_pass "Off/onlining an L2ARC device restores all written blocks, vdev present."
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