Differences

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--- linux:fs:zfs:shrink [2021/11/30 11:20] – niziak
+++ linux:fs:zfs:shrink [2024/02/16 07:49] (current) – niziak
@@ Line 1: / Line 1: @@
-====== ZFS shrink pool ======
+====== ZFS: resize zpool ======
-Shrink zpool is not possible, but trick with 2nd device (or even file) works:
+===== extend pool =====
+Get device name used in pool:
+<code bash>
+zpool status nvmpool
+</code>
+<code bash>
+# resize /dev/nvme0n1p3
+parted /dev/nvme0n1
+</code>
+<code>
+resizepart 3
+End ? [X.XGB]?
+quit
+</code>
+<code bash>
+zpool online -e nvmpool nvme0n1p3
+</code>
+====== ZFS: shrink zpool ======
+Shrinking of zpool is not possible, but trick with 2nd device (or even file) works:
   * add 2nd device to zpool (can be smaller - only to fit data)
   * remove 1st device - zpool will copy all data to another device.
@@ Line 18: / Line 42: @@
 zpool add rpool /dev/disk/by-id/SECOND-part3
 zpool remove rpool /dev/disk/by-id/FIRST-part3
+</code>
+Sometimes ZFS refuse to remove device with 'out of space' error (but second device is capable to handle all data). To solve it, add more temporary devices to ''rpool''
+<code bash>
+zfs create -V 64gb nvmpool/t1
+zfs create -V 64gb nvmpool/t2
+zpool add rpool /dev/zvol/nvmpool/t1
+zpool add rpool /dev/zvol/nvmpool/t2
 </code>