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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
159 lines
3.7 KiB
Bash
Executable File
159 lines
3.7 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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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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# Use is subject to license terms.
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#
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#
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# Copyright (c) 2013, 2016 by Delphix. 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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. $STF_SUITE/tests/functional/replacement/replacement.cfg
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#
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# DESCRIPTION:
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# Replacing disks during I/O should pass for supported pools.
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#
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# STRATEGY:
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# 1. Create multidisk pools (stripe/mirror) and
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# start some random I/O
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# 2. Replace a disk in the pool with another disk.
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# 3. Verify the integrity of the file system and the rebuilding.
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#
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# NOTE: Raidz does not support the sequential resilver (-s) option.
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#
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verify_runnable "global"
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function cleanup
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{
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if [[ -n "$child_pids" ]]; then
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for wait_pid in $child_pids
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do
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kill $wait_pid
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done
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fi
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if poolexists $TESTPOOL1; then
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destroy_pool $TESTPOOL1
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fi
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[[ -e $TESTDIR ]] && log_must rm -rf $TESTDIR/*
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}
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log_assert "Replacing a disk with -r during I/O completes."
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options=""
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options_display="default options"
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log_onexit cleanup
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[[ -n "$HOLES_FILESIZE" ]] && options=" $options -f $HOLES_FILESIZE "
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[[ -n "$HOLES_BLKSIZE" ]] && options="$options -b $HOLES_BLKSIZE "
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[[ -n "$HOLES_COUNT" ]] && options="$options -c $HOLES_COUNT "
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[[ -n "$HOLES_SEED" ]] && options="$options -s $HOLES_SEED "
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[[ -n "$HOLES_FILEOFFSET" ]] && options="$options -o $HOLES_FILEOFFSET "
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options="$options -r "
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[[ -n "$options" ]] && options_display=$options
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child_pids=""
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function replace_test
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{
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typeset -i iters=2
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typeset -i index=0
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typeset opt=$1
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typeset disk1=$2
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typeset disk2=$3
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typeset i=0
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while [[ $i -lt $iters ]]; do
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log_note "Invoking file_trunc with: $options_display"
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file_trunc $options $TESTDIR/$TESTFILE.$i &
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typeset pid=$!
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sleep 1
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child_pids="$child_pids $pid"
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((i = i + 1))
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done
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log_must zpool replace -sw $opt $TESTPOOL1 $disk1 $disk2
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for wait_pid in $child_pids
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do
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kill $wait_pid
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done
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child_pids=""
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log_must zpool export $TESTPOOL1
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log_must zpool import -d $TESTDIR $TESTPOOL1
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log_must zfs umount $TESTPOOL1/$TESTFS1
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log_must zdb -cdui $TESTPOOL1/$TESTFS1
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log_must zfs mount $TESTPOOL1/$TESTFS1
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verify_pool $TESTPOOL1
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}
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specials_list=""
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i=0
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while [[ $i != 3 ]]; do
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log_must truncate -s $MINVDEVSIZE $TESTDIR/$TESTFILE1.$i
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specials_list="$specials_list $TESTDIR/$TESTFILE1.$i"
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((i = i + 1))
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done
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#
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# Create a replacement disk special file.
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#
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log_must truncate -s $MINVDEVSIZE $TESTDIR/$REPLACEFILE
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for type in "" "mirror"; do
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for op in "" "-f"; do
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create_pool $TESTPOOL1 $type $specials_list
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log_must zfs create $TESTPOOL1/$TESTFS1
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log_must zfs set mountpoint=$TESTDIR1 $TESTPOOL1/$TESTFS1
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replace_test "$opt" $TESTDIR/$TESTFILE1.1 $TESTDIR/$REPLACEFILE
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zpool iostat -v $TESTPOOL1 | grep "$REPLACEFILE"
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if [[ $? -ne 0 ]]; then
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log_fail "$REPLACEFILE is not present."
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fi
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destroy_pool $TESTPOOL1
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log_must rm -rf /$TESTPOOL1
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done
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done
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log_pass
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