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ZFS/boojum-expand-raidz.sh

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+#!/bin/bash
+
+# 2025.Jan kneutron
+# Expand raidz with 1-2 disks for more free space
+
+echo "o NOTE zfs-2.3.0-1 or higher is required!"
+zfs -V
+
+# checkver
+# zfs -V |head -n 1 |tr -d 'zfs-' |tr -d '.-'
+#2301
+
+# xxx TODO EDITME
+usedisk=vdg
+#usedisk=vdh # 2nd run, comment above and uncomment thisline
+zp=zraidzexpandtest
+
+# zpool attach tank raidz1-0 sda
+# REF: https://github.com/openzfs/zfs/pull/15022
+# REF: https://arstechnica.com/gadgets/2021/06/raidz-expansion-code-lands-in-openzfs-master/
+
+zpool status -v |awk 'NF>0'
+
+echo '====='
+echo "Enter to proceed expanding $zp with disk $usedisk / $(ls -l /dev/disk/by-path |grep $usedisk |head -n 1 |awk '{print $9}')"
+read -n 1
+
+time zpool attach $zp raidz1-0 $usedisk
+echo "Enter to watch resilver or ^C"
+read
+zfs-watchresilver-boojum.sh
+
+date

ZFS/boojum-expand-raidz2.sh

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+#!/bin/bash
+
+# 2025.Jan kneutron
+# Expand raidz2 with 1-2 disks for more free space
+
+# NOTE zfs-2.3.0-1 or higher is required!
+
+# xxx TODO EDITME
+usedisk=vdo
+#usedisk=vdp # 2nd run, comment above line and uncomment thisline
+zp=zraidz2expandtest
+
+# zpool attach tank raidz2-0 sda
+# REF: https://github.com/openzfs/zfs/pull/15022
+# REF: https://arstechnica.com/gadgets/2021/06/raidz-expansion-code-lands-in-openzfs-master/
+
+zpool status -v |awk 'NF>0'
+
+echo '====='
+echo "Enter to proceed expanding $zp with disk $usedisk / $(ls -l /dev/disk/by-path |grep $usedisk |head -n 1 |awk '{print $9}')"
+echo " or ^C to stop"
+read -n 1
+
+time zpool attach $zp raidz2-0 $usedisk
+#echo "PK to watch resilver"
+#read
+zfs-watchresilver-boojum.sh $zp
+
+date

ZFS/zpool-create-raidz-for-expansion.sh

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+#!/bin/bash
+
+# 2025.Jan kneutron
+
+echo "o NOTE zfs-2.3.0-1 or higher is required!"
+zfs -V
+
+zp=zraidzexpandtest
+
+# vda=vdp avail; f=6
+zpool create -o ashift=12 -o autoexpand=on -o autoreplace=off -O atime=off -O compression=lz4 \
+  $zp raidz1 \
+  vd{a..f} 
+  
+zpool list -v
+zpool status -v |awk 'NF>0'

ZFS/zpool-create-raidz2-for-expansion.sh

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+#!/bin/bash
+
+# 2025.Jan kneutron
+
+echo "o NOTE zfs-2.3.0-1 or higher is required!"
+zfs -V
+
+# vdi..p avail for pool2
+zp=zraidz2expandtest
+
+zpool create -o ashift=12 -o autoexpand=on -o autoreplace=off -O atime=off -O compression=lz4 \
+  $zp raidz2 \
+  vd{i..n} 
+  
+zpool list -v
+zpool status -v |awk 'NF>0'
+