mirror of
https://github.com/kneutron/ansitest.git
synced 2025-01-16 04:42:55 +08:00
934 lines
51 KiB
Bash
934 lines
51 KiB
Bash
#!/bin/bash
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echo "$0 - 2021 Dave Bechtel - make a ZFS DRAID pool"
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echo "- pass arg1='reset' to destroy test pool"
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echo "- pass arg1='fail' and arg2=dev2fail to simulate failure"
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# Requires at least zfs 2.1.0
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DBI=/dev/disk/by-id
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# total disks for pool / children
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td=82 # 90 - spares and rootdisk
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# raidz level (usually 2)
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rzl=1
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# spares
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spr=1
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# TODO EDITME
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zp=zdraidtest
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function zps () {
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zpool status -v |awk 'NF>0'
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}
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#pooldisks=$(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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pooldisks01=$(echo /dev/sd{b..g}) # a is rootdisk
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pooldisks02=$(echo /dev/sd{h..m})
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pooldisks03=$(echo /dev/sd{n..s})
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pooldisks04=$(echo /dev/sd{t..y}) # z is spare
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pooldisks05=$(echo /dev/sda{a..f}) #abcdef
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pooldisks06=$(echo /dev/sda{g..l}) #ghijkl
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pooldisks07=$(echo /dev/sda{m..r}) #mnopqr
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pooldisks08=$(echo /dev/sda{s..x}) #stuvwx # yz are spares
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pooldisks09=$(echo /dev/sdb{a..f}) #abcdef
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pooldisks10=$(echo /dev/sdb{g..l}) #ghijkl
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pooldisks11=$(echo /dev/sdb{m..r}) #mnopqr
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pooldisks12=$(echo /dev/sdb{s..x}) #stuvwx # yz are spares
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pooldisks13=$(echo /dev/sdc{a..f}) #abcdef
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pooldisks14=$(echo /dev/sdc{g..l}) #ghijkl # no idle spares, only virtual
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#pooldisks=$pooldisks1' '$pooldisks2' '$pooldisks3' '$pooldisks4 # need entire set for reset
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pooldisks=$pooldisks01' '$pooldisks02' '$pooldisks03' '$pooldisks04' '$pooldisks05' '$pooldisks06
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pooldisks=$pooldisks' '$pooldisks07' '$pooldisks08' '$pooldisks09' '$pooldisks10' '$pooldisks11
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pooldisks=$pooldisks' '$pooldisks12' '$pooldisks13' '$pooldisks14
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# 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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# 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
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# D D D Z2 Z2 S
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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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if [ "$1" = "reset" ]; then
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zpool destroy $zp
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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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zpool status -v
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exit; # early
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fi
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if [ "$1" = "fail" ]; then
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echo "$(date) - Simulating disk failure for $(ls -l $DBI |grep $2)"
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echo offline > /sys/block/$2/device/state
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cat /sys/block/$2/device/state
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time dd if=/dev/urandom of=/$zp/^^tmpfileDELME bs=1M count=$td; sync
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# force a write; if not work, try scrub
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zps
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exit; # early
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fi
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# zpool create <pool> draid[<parity>][:<data>d][:<children>c][:<spares>s] <vdevs...>
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# ex: draid2:4d:1s:11c
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# SLOW writing to zstd-3
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# draid$rzl:8d:12'c':$spr's' $pooldisks1 \
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# draid$rzl:8d:12'c':$spr's' $pooldisks2 \
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iteration=1
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if [ "$iteration" = "1" ]; then
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# compression=zstd-3
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# -o ashift=12
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( set -x
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time zpool create -o autoexpand=on -O atime=off -O compression=lz4 \
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$zp \
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draid$rzl:4d:6'c':$spr's' $pooldisks01 \
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draid$rzl:4d:6'c':$spr's' $pooldisks02 \
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draid$rzl:4d:6'c':$spr's' $pooldisks03 \
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draid$rzl:4d:6'c':$spr's' $pooldisks04 \
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draid$rzl:4d:6'c':$spr's' $pooldisks05 \
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draid$rzl:4d:6'c':$spr's' $pooldisks06 \
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draid$rzl:4d:6'c':$spr's' $pooldisks07 \
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draid$rzl:4d:6'c':$spr's' $pooldisks08 \
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draid$rzl:4d:6'c':$spr's' $pooldisks09 \
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draid$rzl:4d:6'c':$spr's' $pooldisks10 \
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draid$rzl:4d:6'c':$spr's' $pooldisks11 \
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draid$rzl:4d:6'c':$spr's' $pooldisks12 \
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draid$rzl:4d:6'c':$spr's' $pooldisks13 \
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draid$rzl:4d:6'c':$spr's' $pooldisks14 \
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|| failexit 101 "Failed to create DRAID"
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)
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else
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# One Big Mother
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# -o ashift=12
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# raidz level (usually 2)
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rzl=2
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# spares
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spr=4
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( set -x
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time zpool create -o autoexpand=on -O atime=off -O compression=lz4 \
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$zp \
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draid$rzl:6d:$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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# 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.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://klarasystems.com/articles/openzfs-draid-finally/
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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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Iteration 1:
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# make a draid with raidz1, x14 VDEVs, 4 data disks, 6 children, 1 spare
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# since we are using fairly small (4GB) disks this should not be an issue
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+ zpool create -o autoexpand=on -O atime=off -O compression=lz4 zdraidtest \
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draid1:4d:6c:1s /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg \
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draid1:4d:6c:1s /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm \
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draid1:4d:6c:1s /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr /dev/sds \
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draid1:4d:6c:1s /dev/sdt /dev/sdu /dev/sdv /dev/sdw /dev/sdx /dev/sdy \
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draid1:4d:6c:1s /dev/sdaa /dev/sdab /dev/sdac /dev/sdad /dev/sdae /dev/sdaf \
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draid1:4d:6c:1s /dev/sdag /dev/sdah /dev/sdai /dev/sdaj /dev/sdak /dev/sdal \
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draid1:4d:6c:1s /dev/sdam /dev/sdan /dev/sdao /dev/sdap /dev/sdaq /dev/sdar \
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draid1:4d:6c:1s /dev/sdas /dev/sdat /dev/sdau /dev/sdav /dev/sdaw /dev/sdax \
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draid1:4d:6c:1s /dev/sdba /dev/sdbb /dev/sdbc /dev/sdbd /dev/sdbe /dev/sdbf \
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draid1:4d:6c:1s /dev/sdbg /dev/sdbh /dev/sdbi /dev/sdbj /dev/sdbk /dev/sdbl \
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draid1:4d:6c:1s /dev/sdbm /dev/sdbn /dev/sdbo /dev/sdbp /dev/sdbq /dev/sdbr \
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draid1:4d:6c:1s /dev/sdbs /dev/sdbt /dev/sdbu /dev/sdbv /dev/sdbw /dev/sdbx \
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draid1:4d:6c:1s /dev/sdca /dev/sdcb /dev/sdcc /dev/sdcd /dev/sdce /dev/sdcf \
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draid1:4d:6c:1s /dev/sdcg /dev/sdch /dev/sdci /dev/sdcj /dev/sdck /dev/sdcl
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real 0m15.619s
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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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cannot share 'zdraidtest/shrcompr: system error': SMB share creation failed
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filesystem successfully created, but not shared
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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 196G 1.0M 196G 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 196G 1.0M 196G 1% /zdraidtest/notshrcompr
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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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draid1:4d:6c:1s-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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draid1:4d:6c:1s-1 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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draid1:4d:6c:1s-2 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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draid1:4d:6c:1s-3 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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draid1:4d:6c:1s-4 ONLINE 0 0 0
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sdaa ONLINE 0 0 0
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sdab ONLINE 0 0 0
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sdac ONLINE 0 0 0
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sdad ONLINE 0 0 0
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sdae ONLINE 0 0 0
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sdaf ONLINE 0 0 0
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draid1:4d:6c:1s-5 ONLINE 0 0 0
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sdag ONLINE 0 0 0
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sdah ONLINE 0 0 0
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sdai ONLINE 0 0 0
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sdaj ONLINE 0 0 0
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sdak ONLINE 0 0 0
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sdal ONLINE 0 0 0
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draid1:4d:6c:1s-6 ONLINE 0 0 0
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sdam ONLINE 0 0 0
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sdan ONLINE 0 0 0
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sdao ONLINE 0 0 0
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sdap ONLINE 0 0 0
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sdaq ONLINE 0 0 0
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sdar ONLINE 0 0 0
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draid1:4d:6c:1s-7 ONLINE 0 0 0
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sdas ONLINE 0 0 0
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sdat ONLINE 0 0 0
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sdau ONLINE 0 0 0
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sdav ONLINE 0 0 0
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sdaw ONLINE 0 0 0
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sdax ONLINE 0 0 0
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draid1:4d:6c:1s-8 ONLINE 0 0 0
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sdba ONLINE 0 0 0
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sdbb ONLINE 0 0 0
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sdbc ONLINE 0 0 0
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sdbd ONLINE 0 0 0
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sdbe ONLINE 0 0 0
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sdbf ONLINE 0 0 0
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draid1:4d:6c:1s-9 ONLINE 0 0 0
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sdbg ONLINE 0 0 0
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sdbh ONLINE 0 0 0
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sdbi ONLINE 0 0 0
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sdbj ONLINE 0 0 0
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sdbk ONLINE 0 0 0
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sdbl ONLINE 0 0 0
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draid1:4d:6c:1s-10 ONLINE 0 0 0
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sdbm ONLINE 0 0 0
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sdbn ONLINE 0 0 0
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sdbo ONLINE 0 0 0
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sdbp ONLINE 0 0 0
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sdbq ONLINE 0 0 0
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sdbr ONLINE 0 0 0
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draid1:4d:6c:1s-11 ONLINE 0 0 0
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sdbs ONLINE 0 0 0
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sdbt ONLINE 0 0 0
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sdbu ONLINE 0 0 0
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sdbv ONLINE 0 0 0
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sdbw ONLINE 0 0 0
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sdbx ONLINE 0 0 0
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draid1:4d:6c:1s-12 ONLINE 0 0 0
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sdca ONLINE 0 0 0
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sdcb ONLINE 0 0 0
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sdcc ONLINE 0 0 0
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sdcd ONLINE 0 0 0
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sdce ONLINE 0 0 0
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sdcf ONLINE 0 0 0
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draid1:4d:6c:1s-13 ONLINE 0 0 0
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sdcg ONLINE 0 0 0
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sdch ONLINE 0 0 0
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sdci ONLINE 0 0 0
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sdcj ONLINE 0 0 0
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sdck ONLINE 0 0 0
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sdcl ONLINE 0 0 0
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spares
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draid1-0-0 AVAIL
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draid1-1-0 AVAIL
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draid1-2-0 AVAIL
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draid1-3-0 AVAIL
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draid1-4-0 AVAIL
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draid1-5-0 AVAIL
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draid1-6-0 AVAIL
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draid1-7-0 AVAIL
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draid1-8-0 AVAIL
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draid1-9-0 AVAIL
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draid1-10-0 AVAIL
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draid1-11-0 AVAIL
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draid1-12-0 AVAIL
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draid1-13-0 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 252G 895K 252G - - 0% 0% 1.00x ONLINE -
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NAME USED AVAIL REFER MOUNTPOINT
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zdraidtest 497K 195G 51.9K /zdraidtest
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zdraidtest/notshrcompr 51.9K 195G 51.9K /zdraidtest/notshrcompr
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zdraidtest/shrcompr 51.9K 195G 51.9K /zdraidtest/shrcompr
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest zfs 196G 128K 196G 1% /zdraidtest
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zdraidtest/shrcompr zfs 196G 1.0M 196G 1% /zdraidtest/shrcompr
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zdraidtest/notshrcompr zfs 196G 1.0M 196G 1% /zdraidtest/notshrcompr
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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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draid$rzl:6d:$td'c':$spr's' $pooldisks \
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Iteration 2 - make a DRAID raidz2 with 6 data disks, (84) children, 4 spares = more space available
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Note that we are allocating more virtual spares than the raidz2 level, as well as having
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idle hotspare disks available - we can sustain 2 failures with no data loss, replace them
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with virtual spares, and once the resilver finishes we should be able to sustain ANOTHER 2 fails
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HOWEVER - if we get 4x simultaneous fails, the pool I/O gets suspended and we HAVE TO reboot
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because the zfs commands will hang
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+ zpool create -o autoexpand=on -O atime=off -O compression=lz4 zdraidtest \
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draid2:6d:84c:4s \
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/dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg \
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/dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm /dev/sdn /dev/sdo \
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/dev/sdp /dev/sdq /dev/sdr /dev/sds /dev/sdt /dev/sdu /dev/sdv /dev/sdw \
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/dev/sdx /dev/sdy /dev/sdaa /dev/sdab /dev/sdac /dev/sdad /dev/sdae \
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/dev/sdaf /dev/sdag /dev/sdah /dev/sdai /dev/sdaj /dev/sdak /dev/sdal \
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/dev/sdam /dev/sdan /dev/sdao /dev/sdap /dev/sdaq /dev/sdar /dev/sdas \
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/dev/sdat /dev/sdau /dev/sdav /dev/sdaw /dev/sdax /dev/sdba /dev/sdbb \
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/dev/sdbc /dev/sdbd /dev/sdbe /dev/sdbf /dev/sdbg /dev/sdbh /dev/sdbi \
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/dev/sdbj /dev/sdbk /dev/sdbl /dev/sdbm /dev/sdbn /dev/sdbo /dev/sdbp \
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/dev/sdbq /dev/sdbr /dev/sdbs /dev/sdbt /dev/sdbu /dev/sdbv /dev/sdbw \
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/dev/sdbx /dev/sdca /dev/sdcb /dev/sdcc /dev/sdcd /dev/sdce /dev/sdcf \
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/dev/sdcg /dev/sdch /dev/sdci /dev/sdcj /dev/sdck /dev/sdcl
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real 0m11.846s
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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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cannot share 'zdraidtest/shrcompr: system error': SMB share creation failed
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filesystem successfully created, but not shared
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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 211G 1.0M 211G 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
|
|
|
|
Filesystem Type Size Used Avail Use% Mounted on
|
|
zdraidtest/notshrcompr zfs 211G 1.0M 211G 1% /zdraidtest/notshrcompr
|
|
|
|
pool: zdraidtest
|
|
state: ONLINE
|
|
config:
|
|
NAME STATE READ WRITE CKSUM
|
|
zdraidtest ONLINE 0 0 0
|
|
draid2:6d:84c:4s-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
|
|
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
|
|
sdaa ONLINE 0 0 0
|
|
sdab ONLINE 0 0 0
|
|
sdac ONLINE 0 0 0
|
|
sdad ONLINE 0 0 0
|
|
sdae ONLINE 0 0 0
|
|
sdaf ONLINE 0 0 0
|
|
sdag ONLINE 0 0 0
|
|
sdah ONLINE 0 0 0
|
|
sdai ONLINE 0 0 0
|
|
sdaj ONLINE 0 0 0
|
|
sdak ONLINE 0 0 0
|
|
sdal ONLINE 0 0 0
|
|
sdam ONLINE 0 0 0
|
|
sdan ONLINE 0 0 0
|
|
sdao ONLINE 0 0 0
|
|
sdap ONLINE 0 0 0
|
|
sdaq ONLINE 0 0 0
|
|
sdar ONLINE 0 0 0
|
|
sdas ONLINE 0 0 0
|
|
sdat ONLINE 0 0 0
|
|
sdau ONLINE 0 0 0
|
|
sdav ONLINE 0 0 0
|
|
sdaw ONLINE 0 0 0
|
|
sdax ONLINE 0 0 0
|
|
sdba ONLINE 0 0 0
|
|
sdbb ONLINE 0 0 0
|
|
sdbc ONLINE 0 0 0
|
|
sdbd ONLINE 0 0 0
|
|
sdbe ONLINE 0 0 0
|
|
sdbf ONLINE 0 0 0
|
|
sdbg ONLINE 0 0 0
|
|
sdbh ONLINE 0 0 0
|
|
sdbi ONLINE 0 0 0
|
|
sdbj ONLINE 0 0 0
|
|
sdbk ONLINE 0 0 0
|
|
sdbl ONLINE 0 0 0
|
|
sdbm ONLINE 0 0 0
|
|
sdbn ONLINE 0 0 0
|
|
sdbo ONLINE 0 0 0
|
|
sdbp ONLINE 0 0 0
|
|
sdbq ONLINE 0 0 0
|
|
sdbr ONLINE 0 0 0
|
|
sdbs ONLINE 0 0 0
|
|
sdbt ONLINE 0 0 0
|
|
sdbu ONLINE 0 0 0
|
|
sdbv ONLINE 0 0 0
|
|
sdbw ONLINE 0 0 0
|
|
sdbx ONLINE 0 0 0
|
|
sdca ONLINE 0 0 0
|
|
sdcb ONLINE 0 0 0
|
|
sdcc ONLINE 0 0 0
|
|
sdcd ONLINE 0 0 0
|
|
sdce ONLINE 0 0 0
|
|
sdcf ONLINE 0 0 0
|
|
sdcg ONLINE 0 0 0
|
|
sdch ONLINE 0 0 0
|
|
sdci ONLINE 0 0 0
|
|
sdcj ONLINE 0 0 0
|
|
sdck ONLINE 0 0 0
|
|
sdcl ONLINE 0 0 0
|
|
spares
|
|
draid2-0-0 AVAIL
|
|
draid2-0-1 AVAIL
|
|
draid2-0-2 AVAIL
|
|
draid2-0-3 AVAIL
|
|
errors: No known data errors
|
|
|
|
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
|
|
zdraidtest 292G 1.21M 292G - - 0% 0% 1.00x ONLINE -
|
|
|
|
NAME USED AVAIL REFER MOUNTPOINT
|
|
zdraidtest 634K 211G 77.4K /zdraidtest
|
|
zdraidtest/notshrcompr 77.4K 211G 77.4K /zdraidtest/notshrcompr
|
|
zdraidtest/shrcompr 77.4K 211G 77.4K /zdraidtest/shrcompr
|
|
|
|
Filesystem Type Size Used Avail Use% Mounted on
|
|
zdraidtest zfs 211G 128K 211G 1% /zdraidtest
|
|
zdraidtest/shrcompr zfs 211G 1.0M 211G 1% /zdraidtest/shrcompr
|
|
zdraidtest/notshrcompr zfs 211G 1.0M 211G 1% /zdraidtest/notshrcompr
|
|
|
|
NOTE - best practice is to export the pool and # zpool import -a -d /dev/disk/by-id
|
|
|
|
|
|
-----
|
|
|
|
Here is a simulated severely degraded draidZ2 pool with multiple drive failures and spares in use:
|
|
|
|
zpool replace zdraidtest sdbf draid2-0-0
|
|
zpool replace zdraidtest sdbg draid2-0-1
|
|
|
|
|
|
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 192K in 00:00:00 with 0 errors on Sat Jul 3 17:13:50 2021
|
|
config:
|
|
NAME STATE READ WRITE CKSUM
|
|
zdraidtest DEGRADED 0 0 0
|
|
draid2:6d:84c:4s-0 DEGRADED 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
|
|
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
|
|
sdaa ONLINE 0 0 0
|
|
sdab ONLINE 0 0 0
|
|
sdac ONLINE 0 0 0
|
|
sdad ONLINE 0 0 0
|
|
sdae ONLINE 0 0 0
|
|
sdaf ONLINE 0 0 0
|
|
sdag ONLINE 0 0 0
|
|
sdah ONLINE 0 0 0
|
|
sdai ONLINE 0 0 0
|
|
sdaj ONLINE 0 0 0
|
|
sdak ONLINE 0 0 0
|
|
sdal ONLINE 0 0 0
|
|
sdam ONLINE 0 0 0
|
|
sdan ONLINE 0 0 0
|
|
sdao ONLINE 0 0 0
|
|
sdap ONLINE 0 0 0
|
|
sdaq ONLINE 0 0 0
|
|
sdar ONLINE 0 0 0
|
|
sdas ONLINE 0 0 0
|
|
sdat ONLINE 0 0 0
|
|
sdau ONLINE 0 0 0
|
|
sdav ONLINE 0 0 0
|
|
sdaw ONLINE 0 0 0
|
|
sdax ONLINE 0 0 0
|
|
sdba ONLINE 0 0 0
|
|
sdbb ONLINE 0 0 0
|
|
sdbc ONLINE 0 0 0
|
|
sdbd ONLINE 0 0 0
|
|
sdbe ONLINE 0 0 0
|
|
spare-53 DEGRADED 0 0 0
|
|
sdbf UNAVAIL 0 0 0
|
|
draid2-0-0 ONLINE 0 0 0
|
|
spare-54 DEGRADED 0 0 0
|
|
sdbg UNAVAIL 0 0 0
|
|
draid2-0-1 ONLINE 0 0 0
|
|
sdbh ONLINE 0 0 0
|
|
sdbi ONLINE 0 0 0
|
|
sdbj ONLINE 0 0 0
|
|
sdbk ONLINE 0 0 0
|
|
sdbl ONLINE 0 0 0
|
|
sdbm ONLINE 0 0 0
|
|
sdbn ONLINE 0 0 0
|
|
sdbo ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa5ac7f8f-8a80f392 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3e6c2216-e4a84097 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBdf46700d-57ffca34 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB93e2157f-ddab1d56 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa832bbfb-72039324 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBfaec32a1-3e70d636 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf341e4d8-2d3ef1c1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6e562a6b-0a70e7a7 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB2b5edd5d-4a72ce8e ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB7ba0f6fc-682efc82 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB159ac173-a10e8776 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBd640cdea-57f6bda0 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB17592c2d-adb9e154 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6fd46fec-854516be ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB5eb81d86-30bd0f13 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB104bd37f-4cfbff43 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB0482fe5a-9533bcec ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf406b98e-63085d50 ONLINE 0 0 0
|
|
scsi-1ATA_VBOX_HARDDISK_VB2bb3428a-78b4c7f1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3ccc0544-8e178e88 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBb0b1ed03-fa8cfd99 ONLINE 0 0 0
|
|
spares
|
|
draid2-0-0 INUSE currently in use
|
|
draid2-0-1 INUSE currently in use
|
|
draid2-0-2 AVAIL
|
|
draid2-0-3 AVAIL
|
|
errors: No known data errors
|
|
|
|
|
|
NOTE that we still have 2x extra virtual spares available, and idle hotspare disks allocated;
|
|
We should be able to sustain 2 more disk failures but not 3.
|
|
|
|
At this point we will also simfail sdo and sdaq.
|
|
|
|
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 192K in 00:00:00 with 0 errors on Sat Jul 3 17:13:50 2021
|
|
config:
|
|
NAME STATE READ WRITE CKSUM
|
|
zdraidtest DEGRADED 0 0 0
|
|
draid2:6d:84c:4s-0 DEGRADED 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
|
|
sdn ONLINE 0 0 0
|
|
sdo UNAVAIL 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
|
|
sdaa ONLINE 0 0 0
|
|
sdab ONLINE 0 0 0
|
|
sdac ONLINE 0 0 0
|
|
sdad ONLINE 0 0 0
|
|
sdae ONLINE 0 0 0
|
|
sdaf ONLINE 0 0 0
|
|
sdag ONLINE 0 0 0
|
|
sdah ONLINE 0 0 0
|
|
sdai ONLINE 0 0 0
|
|
sdaj ONLINE 0 0 0
|
|
sdak ONLINE 0 0 0
|
|
sdal ONLINE 0 0 0
|
|
sdam ONLINE 0 0 0
|
|
sdan ONLINE 0 0 0
|
|
sdao ONLINE 0 0 0
|
|
sdap ONLINE 0 0 0
|
|
sdaq UNAVAIL 0 0 0
|
|
sdar ONLINE 0 0 0
|
|
sdas ONLINE 0 0 0
|
|
sdat ONLINE 0 0 0
|
|
sdau ONLINE 0 0 0
|
|
sdav ONLINE 0 0 0
|
|
sdaw ONLINE 0 0 0
|
|
sdax ONLINE 0 0 0
|
|
sdba ONLINE 0 0 0
|
|
sdbb ONLINE 0 0 0
|
|
sdbc ONLINE 0 0 0
|
|
sdbd ONLINE 0 0 0
|
|
sdbe ONLINE 0 0 0
|
|
spare-53 DEGRADED 0 0 0
|
|
sdbf UNAVAIL 0 0 0
|
|
draid2-0-0 ONLINE 0 0 0
|
|
spare-54 DEGRADED 0 0 0
|
|
sdbg UNAVAIL 0 0 0
|
|
draid2-0-1 ONLINE 0 0 0
|
|
sdbh ONLINE 0 0 0
|
|
sdbi ONLINE 0 0 0
|
|
sdbj ONLINE 0 0 0
|
|
sdbk ONLINE 0 0 0
|
|
sdbl ONLINE 0 0 0
|
|
sdbm ONLINE 0 0 0
|
|
sdbn ONLINE 0 0 0
|
|
sdbo ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa5ac7f8f-8a80f392 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3e6c2216-e4a84097 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBdf46700d-57ffca34 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB93e2157f-ddab1d56 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa832bbfb-72039324 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBfaec32a1-3e70d636 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf341e4d8-2d3ef1c1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6e562a6b-0a70e7a7 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB2b5edd5d-4a72ce8e ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB7ba0f6fc-682efc82 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB159ac173-a10e8776 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBd640cdea-57f6bda0 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB17592c2d-adb9e154 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6fd46fec-854516be ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB5eb81d86-30bd0f13 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB104bd37f-4cfbff43 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB0482fe5a-9533bcec ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf406b98e-63085d50 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB2bb3428a-78b4c7f1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3ccc0544-8e178e88 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBb0b1ed03-fa8cfd99 ONLINE 0 0 0
|
|
spares
|
|
draid2-0-0 INUSE currently in use
|
|
draid2-0-1 INUSE currently in use
|
|
draid2-0-2 AVAIL
|
|
draid2-0-3 AVAIL
|
|
errors: No known data errors
|
|
|
|
As long as we replace the failed drives with either the available virtual spares or idling hotspare disks,
|
|
the pool will continue in a degraded state with no data loss.
|
|
|
|
Two virtual spares for draid2:6d:84c:4s-0 are still good to go.
|
|
If ANY other drive also fails at this point without a virtual or real spare put into use,
|
|
we will have a dead pool.
|
|
|
|
FIX: zpool replace zdraidtest sdbg sdbz
|
|
^ This puts the inuse spare back into an AVAIL state since the virtual spare was replaced with an actual drive
|
|
|
|
zpool replace zdraidtest sdaq sdaz
|
|
zpool replace zdraidtest sdo sday
|
|
zpool replace zdraidtest sdbf sdby
|
|
|
|
pool: zdraidtest
|
|
state: ONLINE
|
|
scan: resilvered 470K in 00:00:01 with 0 errors on Sat Jul 3 17:32:43 2021
|
|
config:
|
|
NAME STATE READ WRITE CKSUM
|
|
zdraidtest ONLINE 0 0 0
|
|
draid2:6d:84c:4s-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
|
|
sdn ONLINE 0 0 0
|
|
sday 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
|
|
sdaa ONLINE 0 0 0
|
|
sdab ONLINE 0 0 0
|
|
sdac ONLINE 0 0 0
|
|
sdad ONLINE 0 0 0
|
|
sdae ONLINE 0 0 0
|
|
sdaf ONLINE 0 0 0
|
|
sdag ONLINE 0 0 0
|
|
sdah ONLINE 0 0 0
|
|
sdai ONLINE 0 0 0
|
|
sdaj ONLINE 0 0 0
|
|
sdak ONLINE 0 0 0
|
|
sdal ONLINE 0 0 0
|
|
sdam ONLINE 0 0 0
|
|
sdan ONLINE 0 0 0
|
|
sdao ONLINE 0 0 0
|
|
sdap ONLINE 0 0 0
|
|
sdaz ONLINE 0 0 0
|
|
sdar ONLINE 0 0 0
|
|
sdas ONLINE 0 0 0
|
|
sdat ONLINE 0 0 0
|
|
sdau ONLINE 0 0 0
|
|
sdav ONLINE 0 0 0
|
|
sdaw ONLINE 0 0 0
|
|
sdax ONLINE 0 0 0
|
|
sdba ONLINE 0 0 0
|
|
sdbb ONLINE 0 0 0
|
|
sdbc ONLINE 0 0 0
|
|
sdbd ONLINE 0 0 0
|
|
sdbe ONLINE 0 0 0
|
|
sdby ONLINE 0 0 0
|
|
sdbz ONLINE 0 0 0
|
|
sdbh ONLINE 0 0 0
|
|
sdbi ONLINE 0 0 0
|
|
sdbj ONLINE 0 0 0
|
|
sdbk ONLINE 0 0 0
|
|
sdbl ONLINE 0 0 0
|
|
sdbm ONLINE 0 0 0
|
|
sdbn ONLINE 0 0 0
|
|
sdbo ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa5ac7f8f-8a80f392 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3e6c2216-e4a84097 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBdf46700d-57ffca34 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB93e2157f-ddab1d56 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBa832bbfb-72039324 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBfaec32a1-3e70d636 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf341e4d8-2d3ef1c1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6e562a6b-0a70e7a7 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB2b5edd5d-4a72ce8e ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB7ba0f6fc-682efc82 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB159ac173-a10e8776 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBd640cdea-57f6bda0 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB17592c2d-adb9e154 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB6fd46fec-854516be ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB5eb81d86-30bd0f13 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB104bd37f-4cfbff43 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB0482fe5a-9533bcec ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBf406b98e-63085d50 ONLINE 0 0 0
|
|
scsi-1ATA_VBOX_HARDDISK_VB2bb3428a-78b4c7f1 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VB3ccc0544-8e178e88 ONLINE 0 0 0
|
|
scsi-SATA_VBOX_HARDDISK_VBb0b1ed03-fa8cfd99 ONLINE 0 0 0
|
|
spares
|
|
draid2-0-0 AVAIL
|
|
draid2-0-1 AVAIL
|
|
draid2-0-2 AVAIL
|
|
draid2-0-3 AVAIL
|
|
errors: No known data errors
|
|
|
|
...and now the pool is whole again, all the virtual spares are back in place - things might be a little
|
|
disordered as far as tracking what drives are in use now but we had multiple drive failures even after
|
|
virtual spares were put in use and the pool is still going. ' zpool history ' can help.
|
|
|
|
-----
|
|
|
|
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 virtual 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:
|
|
|
|
zpool export -a
|
|
|
|
fdisk -l /dev/sdd # scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368
|
|
zpool labelclear /dev/sdd
|
|
zpool labelclear -f /dev/sdd1
|
|
|
|
zpool import -a
|
|
zpool status -v # This will show a degraded pool with a missing disk
|
|
|
|
# This wont work but gives useful info:
|
|
zpool replace zdraidtest spare-2 scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368 # got error, use detach
|
|
|
|
zpool detach zdraidtest 2582498653363374334 # this was listed as UNAVAIL with the spare in-use underneath it
|
|
zpool status -v # should now show only the spare where sdd was
|
|
|
|
# we labelcleared it so it should be ready for re-use;
|
|
# if you want to be really thorough you can DD zeros to the entire drive but not really necessary
|
|
zpool replace zdraidtest draid2-0-0 scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368 # same disk (sdd) but labelcleared
|
|
zpool status -v
|