mirror of
https://github.com/kneutron/ansitest.git
synced 2025-01-16 04:42:55 +08:00
669 lines
28 KiB
Bash
669 lines
28 KiB
Bash
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#!/bin/bash
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echo "$0 - 2021 Dave Bechtel - make a ZFS DRAID pool"
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echo "- pass arg1='reset' to destroy test pool"
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echo "- pass arg1='fail' and arg2=dev2fail to simulate failure"
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echo "Reboot to clear simulated device failures before issuing 'reset'"
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# Requires at least zfs 2.1.0
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DD=/dev/disk
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DBI=/dev/disk/by-id
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# total disks for pool / children
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td=24
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# raidz level (usually 2)
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rzl=1
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# spares
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spr=2
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# TODO EDITME
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zp=zdraidtest
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function zps () {
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zpool status -v |awk 'NF>0'
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}
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#pooldisks=$(echo /dev/sd{b..y})
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pooldisks1=$(echo /dev/sd{b..m})
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pooldisks2=$(echo /dev/sd{n..y})
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pooldisks=$pooldisks1' '$pooldisks2 # need entire set for reset
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# sdb sdc sdd sde sdf sdg sdh sdi sdj sdk sdl sdm sdn sdo sdp sdq sdr sds sdt sdu sdv sdw sdx sdy
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# extending to 32 disks
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#pooldisks2=$(echo /dev/sda{a..h})
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#sdaa sdab sdac sdad sdae sdaf sdag sdah
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# failexit.mrg
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function failexit () {
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echo '! Something failed! Code: '"$1 $2" # code # (and optional description)
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exit $1
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}
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# cre8 drive translation table - NOTE 32 disk config gets overridden vv
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source ~/bin/boojum/draid-pooldisks-assoc.sh $td
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# Flame the pool and start over from 0
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if [ "$1" = "reset" ]; then
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logger "$(date) - $0 - RESET issued - destroying $zp"
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# no need to worry if its not imported / already destroyed
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if [ $(zpool list |grep -c $zp) -gt 0 ]; then
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zpool destroy $zp || failexit 999 "Failed to destroy $zp"
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fi
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for d in $pooldisks; do
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echo -e -n "o Clearing label for disk $d \r"
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zpool labelclear -f "$d"1
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done
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echo ''
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# also reset hotspares
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# echo ${hotspares[@]}
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# zpool status -v |egrep 'sdz|sday|sdaz|sdby|sdbz|sdcy|sdcz'
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for d in ${hotspares[@]}; do
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#echo $d # DEBUG
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echo -e -n "o Clearing label for Hotspare disk $d \r"
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zpool labelclear -f "/dev/$d"1
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done
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echo ''
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zpool status -v
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exit; # early
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fi
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# Simulate a drive failure; if zed daemon is running, a spare should auto kick in
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if [ "$1" = "fail" ]; then
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# NOTE we do NO error checking here, so if you fail your ROOT DISK, THAT'S ON YOU!
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# also cp syslog
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echo "$(date) - $0 - Simulating disk failure for $2 $(ls -lR $DD |grep $2)" |tee |logger
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echo offline > /sys/block/$2/device/state
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cat /sys/block/$2/device/state |tee |logger
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time dd if=/dev/urandom of=/$zp/^^tmpfileDELME bs=1M count=$td; sync
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# force a write; if not work, try scrub
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zps
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exit; # early
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fi
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# TODO EDITME
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#iteration=OBM
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iteration=2
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if [ "$iteration" = "1" ]; then
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# compression=zstd-3
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# -o ashift=12
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# raidz level (usually 2)
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rzl=1
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# Vspares - this is a 96-drive pool, you DON'T want to skimp!
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spr=2
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( set -x
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time zpool create -o autoreplace=on -o autoexpand=on -O atime=off -O compression=lz4 \
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$zp \
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draid$rzl:8d:12'c':$spr's' $pooldisks1 \
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draid$rzl:8d:12'c':$spr's' $pooldisks2 \
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|| failexit 101 "Failed to create DRAID"
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)
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elif [ "$iteration" = "2" ]; then
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# zpool create <pool> draid[<parity>][:<data>d][:<children>c][:<spares>s] <vdevs...>
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# ex: draid2:4d:1s:11c
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# raidz level (usually 2)
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rzl=2
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# Vspares - this is a 96-drive pool, you DON'T want to skimp!
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spr=2
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( set -x
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time zpool create -o ashift=12 -o autoexpand=on -O atime=off -O compression=zstd-3 \
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$zp \
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draid$rzl:8d:12'c':$spr's' $pooldisks1 \
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draid$rzl:8d:12'c':$spr's' $pooldisks2 \
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|| failexit 101 "Failed to create DRAID"
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)
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else
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# One Big Mother
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# -o ashift=12
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# raidz level (usually 2)
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rzl=2
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# spares - this is a 96-drive pool, you DON'T want to skimp!
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spr=2
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( set -x
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time zpool create -o autoreplace=on -o autoexpand=on -O atime=off -O compression=lz4 \
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$zp \
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draid$rzl:8d:$td'c':$spr's' $pooldisks \
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|| failexit 101 "Failed to create DRAID"
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)
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fi
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rc=$?
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[ $rc -gt 0 ] && exit $rc
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# ^ Need this check because of subshell, will not exit early otherwise
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# [ $(zpool list |grep -c "no pools") -eq 0 ] && \
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# zpool add $zp spare ${hotspares[@]}
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# The below will not work: gets error
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# "requested number of dRAID data disks per group 10 is too high, at most 8 disks are available for data"
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#( set -x
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#time zpool create -o ashift=12 -o autoexpand=on -O atime=off -O compression=zstd-3 \
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# $zp \
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# draid$rzl:10d:12'c':$spr's' $pooldisks1 \
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# draid$rzl:10d:12'c':$spr's' $pooldisks2 \
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#|| failexit 101 "Failed to create DRAID"
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#)
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# cre8 datasets
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# requires external script in the same PATH
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# going with lz4 so not limited by CPU for compression
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zfs-newds.sh 11 $zp shrcompr
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zfs-newds.sh 10 $zp notshrcompr
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zfs-newds-zstd.sh 10 $zp notshrcompr-zstd
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zfs-newds.sh 00 $zp notshrnotcompr
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zps
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zpool list
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zfs list
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df -hT |egrep 'ilesystem|zfs'
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echo "NOTE - best practice is to export the pool and # zpool import -a -d $DBI"
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date
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exit;
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# REFS:
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https://openzfs.github.io/openzfs-docs/Basic%20Concepts/dRAID%20Howto.html
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https://www.reddit.com/r/zfs/comments/lnoh7v/im_trying_to_understand_how_draid_works_but_im/
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https://insider-voice.com/a-deep-dive-into-the-new-openzfs-2-1-distributed-raid-topology/
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https://docs.google.com/presentation/d/1uo0nBfY84HIhEqGWEx-Tbm8fPbJKtIP3ICo4toOPcJo/edit#slide=id.g9d6b9fd59f_0_27
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Group size must divide evenly into draid size
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E.g., 30 drives can only support
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3 drive group
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5 drive group
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10 drive group
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15 drive group
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Only need to specify group size at creation
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Group Size - the number of pieces the data is partitioned into plus the amount of parity
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o The amount of parity determines the redundancy
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o The number of data pieces determines the overhead
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dRAID Size - the number of drives used for data
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(Does not include spare drives)
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-----
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# make a draidz1 with x2 VDEVs, 8 data disks, 12 children, 2 spares (per vdev)
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Defining for 24 disks in pool b4 hotspares (1)
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+ zpool create -o autoreplace=on -o autoexpand=on -O atime=off -O compression=lz4 zdraidtest \
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draid1:8d:12c:2s /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm \
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draid1:8d:12c:2s /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr /dev/sds /dev/sdt /dev/sdu /dev/sdv /dev/sdw /dev/sdx /dev/sdy
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real 0m3.304s
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+ zfs create -o atime=off -o compression=lz4 -o sharesmb=on -o xattr=sa -o recordsize=1024k zdraidtest/shrcompr
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changed ownership of '/zdraidtest/shrcompr' from root to user
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest/shrcompr zfs 63G 1.0M 63G 1% /zdraidtest/shrcompr
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+ zfs create -o atime=off -o compression=lz4 -o sharesmb=off -o recordsize=1024k zdraidtest/notshrcompr
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changed ownership of '/zdraidtest/notshrcompr' from root to user
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest/notshrcompr zfs 63G 1.0M 63G 1% /zdraidtest/notshrcompr
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+ zfs create -o atime=off -o compression=zstd-3 -o sharesmb=off -o recordsize=1024k zdraidtest/notshrcompr-zstd
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changed ownership of '/zdraidtest/notshrcompr-zstd' from root to user
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest/notshrcompr-zstd zfs 63G 1.0M 63G 1% /zdraidtest/notshrcompr-zstd
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+ zfs create -o atime=off -o compression=off -o sharesmb=off -o recordsize=1024k zdraidtest/notshrnotcompr
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changed ownership of '/zdraidtest/notshrnotcompr' from root to user
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest/notshrnotcompr zfs 63G 1.0M 63G 1% /zdraidtest/notshrnotcompr
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pool: zdraidtest
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state: ONLINE
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config:
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NAME STATE READ WRITE CKSUM
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zdraidtest ONLINE 0 0 0
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draid1:8d:12c:2s-0 ONLINE 0 0 0
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sdb ONLINE 0 0 0
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sdc ONLINE 0 0 0
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sdd ONLINE 0 0 0
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sde ONLINE 0 0 0
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sdf ONLINE 0 0 0
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sdg ONLINE 0 0 0
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sdh ONLINE 0 0 0
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sdi ONLINE 0 0 0
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sdj ONLINE 0 0 0
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sdk ONLINE 0 0 0
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sdl ONLINE 0 0 0
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sdm ONLINE 0 0 0
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draid1:8d:12c:2s-1 ONLINE 0 0 0
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sdn ONLINE 0 0 0
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sdo ONLINE 0 0 0
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sdp ONLINE 0 0 0
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sdq ONLINE 0 0 0
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sdr ONLINE 0 0 0
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sds ONLINE 0 0 0
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sdt ONLINE 0 0 0
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sdu ONLINE 0 0 0
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sdv ONLINE 0 0 0
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sdw ONLINE 0 0 0
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sdx ONLINE 0 0 0
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sdy ONLINE 0 0 0
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spares
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draid1-0-0 AVAIL
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draid1-0-1 AVAIL
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draid1-1-0 AVAIL
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draid1-1-1 AVAIL
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errors: No known data errors
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NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
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zdraidtest 73.0G 1.77M 73.0G - - 0% 0% 1.00x ONLINE -
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NAME USED AVAIL REFER MOUNTPOINT
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zdraidtest 1.15M 62.9G 112K /zdraidtest
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zdraidtest/notshrcompr 96.0K 62.9G 96.0K /zdraidtest/notshrcompr
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zdraidtest/notshrcompr-zstd 96.0K 62.9G 96.0K /zdraidtest/notshrcompr-zstd
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zdraidtest/notshrnotcompr 96.0K 62.9G 96.0K /zdraidtest/notshrnotcompr
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zdraidtest/shrcompr 96.0K 62.9G 96.0K /zdraidtest/shrcompr
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest zfs 63G 128K 63G 1% /zdraidtest
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zdraidtest/shrcompr zfs 63G 1.0M 63G 1% /zdraidtest/shrcompr
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zdraidtest/notshrcompr zfs 63G 1.0M 63G 1% /zdraidtest/notshrcompr
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zdraidtest/notshrcompr-zstd zfs 63G 1.0M 63G 1% /zdraidtest/notshrcompr-zstd
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zdraidtest/notshrnotcompr zfs 63G 1.0M 63G 1% /zdraidtest/notshrnotcompr
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NOTE - best practice is to export the pool and # zpool import -a -d /dev/disk/by-id
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-----
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Here is a severely degraded pool with (6) drive fails and all vspares in use, still going strong with no data loss
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despite being raidz1 -- NOTE if we had some pspares configured it could take even more damage:
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pool: zdraidtest
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state: DEGRADED
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status: One or more devices could not be used because the label is missing or
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invalid. Sufficient replicas exist for the pool to continue
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functioning in a degraded state.
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action: Replace the device using 'zpool replace'.
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see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J
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scan: scrub repaired 0B in 00:00:49 with 0 errors on Wed Jul 7 21:51:51 2021
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scan: resilvered (draid1:8d:12c:2s-0) 273M in 00:00:34 with 0 errors on Wed Jul 7 21:38:06 2021
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scan: resilvered (draid1:8d:12c:2s-1) 779M in 00:00:38 with 0 errors on Wed Jul 7 21:51:02 2021
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config:
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NAME STATE READ WRITE CKSUM
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zdraidtest DEGRADED 0 0 0
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draid1:8d:12c:2s-0 DEGRADED 0 0 0
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spare-0 DEGRADED 0 0 0
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sdb UNAVAIL 0 0 0
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draid1-0-0 ONLINE 0 0 0
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sdc ONLINE 0 0 0
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spare-2 DEGRADED 0 0 0
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sdd UNAVAIL 0 0 0
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draid1-0-1 ONLINE 0 0 0
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sde ONLINE 0 0 0
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sdf UNAVAIL 0 0 0
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sdg ONLINE 0 0 0
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sdh ONLINE 0 0 0
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sdi ONLINE 0 0 0
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sdj ONLINE 0 0 0
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sdk ONLINE 0 0 0
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sdl ONLINE 0 0 0
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sdm ONLINE 0 0 0
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draid1:8d:12c:2s-1 DEGRADED 0 0 0
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spare-0 DEGRADED 0 0 0
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||
|
|
sdn UNAVAIL 0 0 0
|
||
|
|
draid1-1-0 ONLINE 0 0 0
|
||
|
|
sdo ONLINE 0 0 0
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdp UNAVAIL 0 0 0
|
||
|
|
draid1-1-1 ONLINE 0 0 0
|
||
|
|
sdq ONLINE 0 0 0
|
||
|
|
sdr UNAVAIL 0 0 0
|
||
|
|
sds ONLINE 0 0 0
|
||
|
|
sdt ONLINE 0 0 0
|
||
|
|
sdu ONLINE 0 0 0
|
||
|
|
sdv ONLINE 0 0 0
|
||
|
|
sdw ONLINE 0 0 0
|
||
|
|
sdx ONLINE 0 0 0
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid1-0-0 INUSE currently in use
|
||
|
|
draid1-0-1 INUSE currently in use
|
||
|
|
draid1-1-0 INUSE currently in use
|
||
|
|
draid1-1-1 INUSE currently in use
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
-----
|
||
|
|
|
||
|
|
# source draid-pooldisks-assoc.sh 24
|
||
|
|
Defining for 24 disks in pool b4 hotspares (1)
|
||
|
|
Dumping shortdisk == longdisk assoc array to /tmp/draid-pooldisks-assoc.log
|
||
|
|
|
||
|
|
# zpool add $zp spare ${hotspares[@]}
|
||
|
|
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid1-0-0 INUSE currently in use
|
||
|
|
draid1-0-1 INUSE currently in use
|
||
|
|
draid1-1-0 INUSE currently in use
|
||
|
|
draid1-1-1 INUSE currently in use
|
||
|
|
sdz AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
We have added a hotspare on the fly but the ZED daemon hasnt done anything with the already-unavail disks,
|
||
|
|
still need to do a manual replace.
|
||
|
|
|
||
|
|
# zpool replace $zp sdf sdz
|
||
|
|
|
||
|
|
pool: zdraidtest
|
||
|
|
state: DEGRADED
|
||
|
|
status: One or more devices could not be used because the label is missing or
|
||
|
|
invalid. Sufficient replicas exist for the pool to continue
|
||
|
|
functioning in a degraded state.
|
||
|
|
action: Replace the device using 'zpool replace'.
|
||
|
|
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J
|
||
|
|
scan: resilvered 1.57G in 00:00:42 with 0 errors on Wed Jul 7 21:59:23 2021
|
||
|
|
|
||
|
|
draid1:8d:12c:2s-0 DEGRADED 0 0 0
|
||
|
|
spare-0 DEGRADED 0 0 0
|
||
|
|
sdb UNAVAIL 0 0 0
|
||
|
|
draid1-0-0 ONLINE 0 0 0
|
||
|
|
sdc ONLINE 0 0 0
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdd UNAVAIL 0 0 0
|
||
|
|
draid1-0-1 ONLINE 0 0 0
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
spare-4 DEGRADED 0 0 0
|
||
|
|
sdf UNAVAIL 0 0 0
|
||
|
|
sdz ONLINE 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
|
||
|
|
We still have a quandary however, the pool will still show as DEGRADED because a hotspare was used;
|
||
|
|
to clear this condition we can reboot and bring sdf back online + detach sdz to roll it back to the hotspares,
|
||
|
|
or replace sdf with a permanent replacement:
|
||
|
|
|
||
|
|
# zpool replace $zp sdf sdaa
|
||
|
|
|
||
|
|
pool: zdraidtest
|
||
|
|
state: DEGRADED
|
||
|
|
status: One or more devices is currently being resilvered. The pool will
|
||
|
|
continue to function, possibly in a degraded state.
|
||
|
|
action: Wait for the resilver to complete.
|
||
|
|
scan: resilver in progress since Wed Jul 7 22:03:14 2021
|
||
|
|
23.1G scanned at 987M/s, 14.1G issued at 604M/s, 23.1G total
|
||
|
|
806M resilvered, 61.15% done, 00:00:15 to go
|
||
|
|
config:
|
||
|
|
NAME STATE READ WRITE CKSUM
|
||
|
|
zdraidtest DEGRADED 0 0 0
|
||
|
|
draid1:8d:12c:2s-0 DEGRADED 0 0 0
|
||
|
|
spare-0 DEGRADED 0 0 0
|
||
|
|
sdb UNAVAIL 0 0 0
|
||
|
|
draid1-0-0 ONLINE 0 0 0 (resilvering)
|
||
|
|
sdc ONLINE 0 0 0 (resilvering)
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdd UNAVAIL 0 0 0
|
||
|
|
draid1-0-1 ONLINE 0 0 0 (resilvering)
|
||
|
|
sde ONLINE 0 0 0 (resilvering)
|
||
|
|
spare-4 DEGRADED 0 0 0
|
||
|
|
replacing-0 DEGRADED 0 0 0
|
||
|
|
sdf UNAVAIL 0 0 0
|
||
|
|
sdaa ONLINE 0 0 0 (resilvering)
|
||
|
|
sdz ONLINE 0 0 0 (resilvering)
|
||
|
|
sdg ONLINE 0 0 0 (resilvering)
|
||
|
|
|
||
|
|
scan: resilvered 1.89G in 00:00:52 with 0 errors on Wed Jul 7 22:04:06 2021
|
||
|
|
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
sdaa ONLINE 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
|
||
|
|
spares
|
||
|
|
draid1-0-0 INUSE currently in use
|
||
|
|
draid1-0-1 INUSE currently in use
|
||
|
|
draid1-1-0 INUSE currently in use
|
||
|
|
draid1-1-1 INUSE currently in use
|
||
|
|
sdz AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
# zpool replace $zp sdr sdab
|
||
|
|
|
||
|
|
scan: resilvered 1.52G in 00:01:05 with 0 errors on Wed Jul 7 22:07:17 2021
|
||
|
|
|
||
|
|
-----
|
||
|
|
|
||
|
|
Another iteration - raidz2
|
||
|
|
|
||
|
|
# make a draidz2 with x2 VDEVs, 8 data disks, 12 children, 2 spares (per vdev)
|
||
|
|
|
||
|
|
pool: zdraidtest
|
||
|
|
state: ONLINE
|
||
|
|
config:
|
||
|
|
NAME STATE READ WRITE CKSUM
|
||
|
|
zdraidtest ONLINE 0 0 0
|
||
|
|
draid2:8d:12c:2s-0 ONLINE 0 0 0
|
||
|
|
sdb ONLINE 0 0 0
|
||
|
|
sdc ONLINE 0 0 0
|
||
|
|
sdd ONLINE 0 0 0
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
sdf ONLINE 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
sdh ONLINE 0 0 0
|
||
|
|
sdi ONLINE 0 0 0
|
||
|
|
sdj ONLINE 0 0 0
|
||
|
|
sdk ONLINE 0 0 0
|
||
|
|
sdl ONLINE 0 0 0
|
||
|
|
sdm ONLINE 0 0 0
|
||
|
|
draid2:8d:12c:2s-1 ONLINE 0 0 0
|
||
|
|
sdn ONLINE 0 0 0
|
||
|
|
sdo ONLINE 0 0 0
|
||
|
|
sdp ONLINE 0 0 0
|
||
|
|
sdq ONLINE 0 0 0
|
||
|
|
sdr ONLINE 0 0 0
|
||
|
|
sds ONLINE 0 0 0
|
||
|
|
sdt ONLINE 0 0 0
|
||
|
|
sdu ONLINE 0 0 0
|
||
|
|
sdv ONLINE 0 0 0
|
||
|
|
sdw ONLINE 0 0 0
|
||
|
|
sdx ONLINE 0 0 0
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid2-0-0 AVAIL
|
||
|
|
draid2-0-1 AVAIL
|
||
|
|
draid2-1-0 AVAIL
|
||
|
|
draid2-1-1 AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
-----
|
||
|
|
|
||
|
|
Here is the above pool in a severely degraded condition, one more drive failure will kill it but we have
|
||
|
|
sustained (8) drive failures despite it being a raidz2 - and still no data loss:
|
||
|
|
|
||
|
|
pool: zdraidtest
|
||
|
|
state: DEGRADED
|
||
|
|
status: One or more devices could not be used because the label is missing or
|
||
|
|
invalid. Sufficient replicas exist for the pool to continue
|
||
|
|
functioning in a degraded state.
|
||
|
|
action: Replace the device using 'zpool replace'.
|
||
|
|
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J
|
||
|
|
scan: scrub repaired 0B in 00:00:36 with 0 errors on Wed Jul 7 22:30:03 2021
|
||
|
|
scan: resilvered (draid2:8d:12c:2s-0) 319M in 00:00:10 with 0 errors on Wed Jul 7 22:23:40 2021
|
||
|
|
scan: resilvered (draid2:8d:12c:2s-1) 598M in 00:00:30 with 0 errors on Wed Jul 7 22:29:27 2021
|
||
|
|
config:
|
||
|
|
NAME STATE READ WRITE CKSUM
|
||
|
|
zdraidtest DEGRADED 0 0 0
|
||
|
|
draid2:8d:12c:2s-0 DEGRADED 0 0 0
|
||
|
|
spare-0 DEGRADED 0 0 0
|
||
|
|
sdb UNAVAIL 0 0 0
|
||
|
|
draid2-0-0 ONLINE 0 0 0
|
||
|
|
sdc ONLINE 0 0 0
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdd UNAVAIL 0 0 0
|
||
|
|
draid2-0-1 ONLINE 0 0 0
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
sdf UNAVAIL 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
sdh UNAVAIL 0 0 0
|
||
|
|
sdi ONLINE 0 0 0
|
||
|
|
sdj ONLINE 0 0 0
|
||
|
|
sdk ONLINE 0 0 0
|
||
|
|
sdl ONLINE 0 0 0
|
||
|
|
sdm ONLINE 0 0 0
|
||
|
|
draid2:8d:12c:2s-1 DEGRADED 0 0 0
|
||
|
|
spare-0 DEGRADED 0 0 0
|
||
|
|
sdn UNAVAIL 0 0 0
|
||
|
|
draid2-1-0 ONLINE 0 0 0
|
||
|
|
sdo ONLINE 0 0 0
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdp UNAVAIL 0 0 0
|
||
|
|
draid2-1-1 ONLINE 0 0 0
|
||
|
|
sdq ONLINE 0 0 0
|
||
|
|
sdr UNAVAIL 0 0 0
|
||
|
|
sds ONLINE 0 0 0
|
||
|
|
sdt UNAVAIL 0 0 0
|
||
|
|
sdu ONLINE 0 0 0
|
||
|
|
sdv ONLINE 0 0 0
|
||
|
|
sdw ONLINE 0 0 0
|
||
|
|
sdx ONLINE 0 0 0
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid2-0-0 INUSE currently in use
|
||
|
|
draid2-0-1 INUSE currently in use
|
||
|
|
draid2-1-0 INUSE currently in use
|
||
|
|
draid2-1-1 INUSE currently in use
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
|
||
|
|
-----
|
||
|
|
|
||
|
|
NOTE if you simulate/take a drive offline, you cant just "echo online" to it later, that wont bring it back up!
|
||
|
|
try rescan-scsi-bus.sh or reboot
|
||
|
|
|
||
|
|
FIX: if a drive is offline, replace it temporarily with a builtin spare:
|
||
|
|
# zpool replace zdraidtest sdd draid2-0-0
|
||
|
|
|
||
|
|
# zps
|
||
|
|
pool: zdraidtest
|
||
|
|
state: DEGRADED
|
||
|
|
status: One or more devices could not be used because the label is missing or
|
||
|
|
invalid. Sufficient replicas exist for the pool to continue
|
||
|
|
functioning in a degraded state.
|
||
|
|
action: Replace the device using 'zpool replace'.
|
||
|
|
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J
|
||
|
|
scan: resilvered 0B in 00:00:00 with 0 errors on Sat Jul 3 14:43:51 2021
|
||
|
|
config:
|
||
|
|
NAME STATE READ WRITE CKSUM
|
||
|
|
zdraidtest DEGRADED 0 0 0
|
||
|
|
draid2:5d:24c:2s-0 DEGRADED 0 0 0
|
||
|
|
sdb ONLINE 0 0 0
|
||
|
|
sdc ONLINE 0 0 0
|
||
|
|
spare-2 DEGRADED 0 0 0
|
||
|
|
sdd UNAVAIL 0 0 0
|
||
|
|
draid2-0-0 ONLINE 0 0 0
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
sdf ONLINE 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
sdh ONLINE 0 0 0
|
||
|
|
sdi ONLINE 0 0 0
|
||
|
|
sdj ONLINE 0 0 0
|
||
|
|
sdk ONLINE 0 0 0
|
||
|
|
sdl ONLINE 0 0 0
|
||
|
|
sdm ONLINE 0 0 0
|
||
|
|
sdn ONLINE 0 0 0
|
||
|
|
sdo ONLINE 0 0 0
|
||
|
|
sdp ONLINE 0 0 0
|
||
|
|
sdq ONLINE 0 0 0
|
||
|
|
sdr ONLINE 0 0 0
|
||
|
|
sds ONLINE 0 0 0
|
||
|
|
sdt ONLINE 0 0 0
|
||
|
|
sdu ONLINE 0 0 0
|
||
|
|
sdv ONLINE 0 0 0
|
||
|
|
sdw ONLINE 0 0 0
|
||
|
|
sdx ONLINE 0 0 0
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid2-0-0 INUSE currently in use
|
||
|
|
draid2-0-1 AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
HOWTO fix the above situation with the same disk (you rebooted / it came back online) and decouple the in-use spare:
|
||
|
|
|
||
|
|
pool: zdraidtest
|
||
|
|
state: ONLINE
|
||
|
|
scan: resilvered 4.42G in 00:01:14 with 0 errors on Wed Jul 7 22:12:23 2021
|
||
|
|
config:
|
||
|
|
NAME STATE READ WRITE CKSUM
|
||
|
|
zdraidtest ONLINE 0 0 0
|
||
|
|
draid1:8d:12c:2s-0 ONLINE 0 0 0
|
||
|
|
spare-0 ONLINE 0 0 0
|
||
|
|
sdb ONLINE 0 0 0
|
||
|
|
draid1-0-0 ONLINE 0 0 0
|
||
|
|
sdc ONLINE 0 0 0
|
||
|
|
spare-2 ONLINE 0 0 0
|
||
|
|
sdd ONLINE 0 0 0
|
||
|
|
draid1-0-1 ONLINE 0 0 0
|
||
|
|
sde ONLINE 0 0 0
|
||
|
|
sdaa ONLINE 0 0 0
|
||
|
|
sdg ONLINE 0 0 0
|
||
|
|
sdh ONLINE 0 0 0
|
||
|
|
sdi ONLINE 0 0 0
|
||
|
|
sdj ONLINE 0 0 0
|
||
|
|
sdk ONLINE 0 0 0
|
||
|
|
sdl ONLINE 0 0 0
|
||
|
|
sdm ONLINE 0 0 0
|
||
|
|
draid1:8d:12c:2s-1 ONLINE 0 0 0
|
||
|
|
spare-0 ONLINE 0 0 0
|
||
|
|
sdn ONLINE 0 0 0
|
||
|
|
draid1-1-0 ONLINE 0 0 0
|
||
|
|
sdo ONLINE 0 0 0
|
||
|
|
spare-2 ONLINE 0 0 0
|
||
|
|
sdp ONLINE 0 0 0
|
||
|
|
draid1-1-1 ONLINE 0 0 0
|
||
|
|
sdq ONLINE 0 0 0
|
||
|
|
sdab ONLINE 0 0 0
|
||
|
|
sds ONLINE 0 0 0
|
||
|
|
sdt ONLINE 0 0 0
|
||
|
|
sdu ONLINE 0 0 0
|
||
|
|
sdv ONLINE 0 0 0
|
||
|
|
sdw ONLINE 0 0 0
|
||
|
|
sdx ONLINE 0 0 0
|
||
|
|
sdy ONLINE 0 0 0
|
||
|
|
spares
|
||
|
|
draid1-0-0 INUSE currently in use
|
||
|
|
draid1-0-1 INUSE currently in use
|
||
|
|
draid1-1-0 INUSE currently in use
|
||
|
|
draid1-1-1 INUSE currently in use
|
||
|
|
sdz AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
The drives are all back, but the vspares are all in use.
|
||
|
|
|
||
|
|
FIX: # zpool detach $zp draid1-0-0
|
||
|
|
# zpool detach $zp draid1-0-1
|
||
|
|
# zpool detach $zp draid1-1-0
|
||
|
|
# zpool detach $zp draid1-1-1
|
||
|
|
|
||
|
|
spares
|
||
|
|
draid1-0-0 AVAIL
|
||
|
|
draid1-0-1 AVAIL
|
||
|
|
draid1-1-0 AVAIL
|
||
|
|
draid1-1-1 AVAIL
|
||
|
|
sdz AVAIL
|
||
|
|
errors: No known data errors
|
||
|
|
|
||
|
|
NOTE if you get the following error after rebooting and bringing dead drives back, it should work OK after a scrub:
|
||
|
|
|
||
|
|
# zpool detach $zp draid2-0-0
|
||
|
|
cannot detach draid2-0-0: no valid replicas
|