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The device_rebuild feature enables sequential reconstruction when
resilvering. Mirror vdevs can be rebuilt in LBA order which may
more quickly restore redundancy depending on the pools average block
size, overall fragmentation and the performance characteristics
of the devices. However, block checksums cannot be verified
as part of the rebuild thus a scrub is automatically started after
the sequential resilver completes.
The new '-s' option has been added to the `zpool attach` and
`zpool replace` command to request sequential reconstruction
instead of healing reconstruction when resilvering.
zpool attach -s <pool> <existing vdev> <new vdev>
zpool replace -s <pool> <old vdev> <new vdev>
The `zpool status` output has been updated to report the progress
of sequential resilvering in the same way as healing resilvering.
The one notable difference is that multiple sequential resilvers
may be in progress as long as they're operating on different
top-level vdevs.
The `zpool wait -t resilver` command was extended to wait on
sequential resilvers. From this perspective they are no different
than healing resilvers.
Sequential resilvers cannot be supported for RAIDZ, but are
compatible with the dRAID feature being developed.
As part of this change the resilver_restart_* tests were moved
in to the functional/replacement directory. Additionally, the
replacement tests were renamed and extended to verify both
resilvering and rebuilding.
Original-patch-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: John Poduska <jpoduska@datto.com>
Co-authored-by: Mark Maybee <mmaybee@cray.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10349
71 lines
1.9 KiB
Bash
Executable File
71 lines
1.9 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) 2019, Datto Inc. All rights reserved.
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# Copyright (c) 2020 by Lawrence Livermore National Security, LLC.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/replacement/replacement.cfg
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#
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# DESCRIPTION:
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# Executing 'zpool replace -s' for raidz vdevs failed. Sequential
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# resilvers are only allowed for stripe/mirror pools.
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#
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# STRATEGY:
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# 1. Create a raidz pool, verify 'zpool replace -s' fails
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# 2. Create a stripe/mirror pool, verify 'zpool replace -s' passes
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#
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function cleanup
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{
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log_must set_tunable32 SCAN_SUSPEND_PROGRESS \
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$ORIG_SCAN_SUSPEND_PROGRESS
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destroy_pool $TESTPOOL1
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rm -f ${VDEV_FILES[@]} $SPARE_VDEV_FILE
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}
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log_assert "Sequential resilver is not allowed for raidz vdevs"
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ORIG_SCAN_SUSPEND_PROGRESS=$(get_tunable SCAN_SUSPEND_PROGRESS)
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log_onexit cleanup
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log_must truncate -s $VDEV_FILE_SIZE ${VDEV_FILES[@]} $SPARE_VDEV_FILE
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# raidz[1-3]
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for vdev_type in "raidz" "raidz2" "raidz3"; do
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log_must zpool create -f $TESTPOOL1 $vdev_type ${VDEV_FILES[@]}
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log_mustnot zpool replace -s $TESTPOOL1 ${VDEV_FILES[1]} \
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$SPARE_VDEV_FILE
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destroy_pool $TESTPOOL1
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done
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# stripe
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log_must zpool create $TESTPOOL1 ${VDEV_FILES[@]}
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log_must zpool replace -s $TESTPOOL1 ${VDEV_FILES[1]} $SPARE_VDEV_FILE
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destroy_pool $TESTPOOL1
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# mirror
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log_must zpool create $TESTPOOL1 mirror ${VDEV_FILES[0]} ${VDEV_FILES[1]}
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log_must zpool replace -s $TESTPOOL1 ${VDEV_FILES[1]} $SPARE_VDEV_FILE
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destroy_pool $TESTPOOL1
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log_pass "Sequential resilver is not allowed for raidz vdevs"
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