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22
ZFS/install-samba.sh
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22
ZFS/install-samba.sh
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#!/bin/bash
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apt install samba smbclient cifs-utils
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exit;
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The following additional packages will be installed:
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attr ibverbs-providers libboost-atomic1.67.0 libboost-iostreams1.67.0 libboost-regex1.67.0 libboost-system1.67.0
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libboost-thread1.67.0 libcephfs2 libgfapi0 libgfrpc0 libgfxdr0 libglusterfs0 libibverbs1 librados2 libtirpc-common
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libtirpc3 python-crypto python-dnspython python-gpg python-ldb python-samba python-tdb samba-common
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samba-common-bin samba-dsdb-modules samba-vfs-modules tdb-tools
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Suggested packages:
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keyutils winbind python-crypto-doc bind9 bind9utils ctdb ldb-tools ntp | chrony smbldap-tools ufw heimdal-clients
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The following NEW packages will be installed:
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attr cifs-utils ibverbs-providers libboost-atomic1.67.0 libboost-iostreams1.67.0 libboost-regex1.67.0
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libboost-system1.67.0 libboost-thread1.67.0 libcephfs2 libgfapi0 libgfrpc0 libgfxdr0 libglusterfs0 libibverbs1
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librados2 libtirpc-common libtirpc3 python-crypto python-dnspython python-gpg python-ldb python-samba python-tdb
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samba samba-common samba-common-bin samba-dsdb-modules samba-vfs-modules smbclient tdb-tools
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0 upgraded, 30 newly installed, 0 to remove and 0 not upgraded.
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Need to get 21.4 MB of archives.
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After this operation, 81.4 MB of additional disk space will be used.
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Do you want to continue? [Y/n] ^C
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10
ZFS/rescan-scsi-bus.sh
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10
ZFS/rescan-scsi-bus.sh
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#!/bin/bash
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# REF: https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c03113986
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echo "$(date) - Rescanning scsi bus"
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for hba in $(ls -1 /sys/class/scsi_host); do
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echo -e -n "$hba \r"
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echo "- - -" > /sys/class/scsi_host/${hba}/scan
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done
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echo ''
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232
ZFS/zfs-mk-draid.sh
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232
ZFS/zfs-mk-draid.sh
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#!/bin/bash
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echo "$0 - 2021 Dave Bechtel - make a ZFS DRAID pool"
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echo "- pass arg1='reset' to destroy test pool"
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echo "- pass arg1='fail' and arg2=dev2fail to simulate failure"
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# Requires at least zfs 2.1.0
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DBI=/dev/disk/by-id
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# total disks for pool / children
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td=24
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# raidz level
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rzl=2
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# spares
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spr=2
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# TODO EDITME
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zp=zdraidtest
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zps=`zpool status -v |awk 'NF>0'`
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pooldisks=$(echo /dev/sd{b..y})
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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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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 $d\r"
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zpool labelclear "$d"1
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done
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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/$2/device/state
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$zps # zpool status -v |awk 'NF>0'
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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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( 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:5d:$td'c':$spr's' $pooldisks \
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|| failexit 101 "Failed to create DRAID"
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)
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# requires external script in the same PATH
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zfs-newds-zstd.sh 11 $zp shrcompr
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zfs-newds-zstd.sh 10 $zp notshrcompr
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$zps # zpool status -v |awk 'NF>0'
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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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# zpool create zdraidtest draid2:5d:24c:2s /dev/sdb /dev/sdc /dev/sdd \
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/dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl \
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/dev/sdm /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr /dev/sds /dev/sdt \
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/dev/sdu /dev/sdv /dev/sdw /dev/sdx /dev/sdy
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real 0m4.108s
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user 0m0.024s
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sys 0m0.162s
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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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draid2:5d:24c: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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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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draid2-0-0 AVAIL
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draid2-0-1 AVAIL
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errors: No known data errors
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NOTE with ashift not specified (virtualbox simulates 512-sector disks):
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Filesystem Type Size Used Avail Use% Mounted on
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zdraidtest zfs 29T 128K 29T 1% /zdraidtest
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with ashift=12:
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zdraidtest zfs 26T 512K 26T 1% /zdraidtest
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NOTE if you simulate/take a drive offline, you cant just "echo online" to it later, that wont bring it back up!
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try rescan-scsi-bus.sh or reboot
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FIX: if a drive is offline, replace it temporarily with a builtin spare:
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# zpool replace zdraidtest sdd draid2-0-0
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# zps
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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: resilvered 0B in 00:00:00 with 0 errors on Sat Jul 3 14:43:51 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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draid2:5d:24c:2s-0 DEGRADED 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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spare-2 DEGRADED 0 0 0
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sdd UNAVAIL 0 0 0
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draid2-0-0 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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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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draid2-0-0 INUSE currently in use
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draid2-0-1 AVAIL
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errors: No known data errors
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HOWTO fix the above situation with the same disk (you rebooted / it came back online) and decouple the in-use spare:
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zpool export -a
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fdisk -l /dev/sdd # scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368
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zpool labelclear /dev/sdd
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zpool labelclear -f /dev/sdd1
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zpool import -a
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zpool status -v # This will show a degraded pool with a missing disk
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# This wont work but gives useful info:
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zpool replace zdraidtest spare-2 scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368 # got error, use detach
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zpool detach zdraidtest 2582498653363374334 # this was listed as UNAVAIL with the spare in-use underneath it
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zpool status -v # should now show only the spare where sdd was
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# we labelcleared it so it should be ready for re-use;
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# if you want to be really thorough you can DD zeros to the entire drive but not really necessary
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zpool replace zdraidtest draid2-0-0 scsi-SATA_VBOX_HARDDISK_VBbcc6c97e-f68b8368 # same disk but labelcleared
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zpool status -v
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69
ZFS/zfs-newds-zstd.sh
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69
ZFS/zfs-newds-zstd.sh
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#!/bin/bash
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# cre8 a new ZFS dataset with options
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echo "$0 opt1=(1)compression opt1=(1)sharesmb, 0 == OFF zpool dirname"
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# TODO -e /tmp/infile read it and process it
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source ~/bin/failexit.mrg
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logfile=/root/boojum-zfs-newds.log
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# TODO editme
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#zp=zredpool2; myds=home/vmtmpdir/vmware-virtmachines
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zp="$2"; myds="$3"
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user=user
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# defaults
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compr=zstd-3
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shrwin=off
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# opt1=compression, opt2=sharesmb
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case "$1" in
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"10" )
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# use defaults
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shrwin=off
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;;
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"11" )
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shrwin="on -o xattr=sa "
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;;
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"01" )
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compr=off; shrwin="on -o xattr=sa "
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;;
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"00" )
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compr=off; shrwin=off
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;;
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"" )
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# no arg passed; print help and exit
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failexit 101 "No arg passed!"
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;;
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* )
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failexit 201 "Invalid arg passed, +$1+ not recognized"
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;;
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esac
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# trace on
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(set -x
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zfs create -o \
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atime=off -o compression=$compr -o sharesmb=${shrwin} -o recordsize=1024k \
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$zp/$myds || failexit 99 "! Failed to create ZFS $zp/$myds"
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)
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echo "`date` + $zp/$myds + compr=$compr:shr=$shrwin + owner:$user" >> $logfile
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# NOTE does not take into account alt.mountpoints like /home!
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chown -v $user /$zp/$myds; ls -al /$zp/$myds
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#df -h /$zp/$myds
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df -hT |head -n 1
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df -hT |grep $myds
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exit;
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# MAC mods
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/var/root/bin/boojum/zfs-newds.sh: line 57: /root/boojum-zfs-newds.log: No such file or directory
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chown: /zwdgreentera/dvnotshrcompr: No such file or directory
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ls: /zwdgreentera/dvnotshrcompr: No such file or directory
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Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
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zwdgreentera/dvnotshrcompr 449Gi 324Ki 449Gi 1% 10 942667768 0% /Volumes/zwdgreentera/dvnotshrcompr
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40 root ~ # pwd
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/var/root
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