wiki:technical:ds:zfs_raid1

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+====== Замена диска в RAID1 под FreeBSD ======
+Смотрим состояние массива:
+<code>
+# zpool status
+  pool: tank
+ state: DEGRADED
+status: One or more devices could not be opened.  Sufficient replicas exist for
+	the pool to continue functioning in a degraded state.
+action: Attach the missing device and online it using 'zpool online'.
+   see: http://illumos.org/msg/ZFS-8000-2Q
+  scan: resilvered 10.5G in 0h9m with 0 errors on Mon Feb  1 09:49:38 2016
+config:
+	NAME                     STATE     READ WRITE CKSUM
+	tank                     DEGRADED     0     0     0
+	  mirror-0               DEGRADED     0     0     0
+	    ada1p3               ONLINE       0     0     0
+	    9066085129501579450  UNAVAIL      0     0     0  was /dev/ada0p3
+errors: No known data errors
+</code>
+Копируем разметку с рабочего диска:
+<code>
+# gpart backup ada1 | gpart restore -F /dev/ada0
+</code>
+Монтируем:
+<code>
+# zpool import -o altroot=/mnt tank
+</code>
+Добавляем:
+<code>
+# zpool replace tank 9066085129501579450 ada0p3
+Make sure to wait until resilver is done before rebooting.
+If you boot from pool 'tank', you may need to update
+boot code on newly attached disk 'ada0p3'.
+Assuming you use GPT partitioning and 'da0' is your new boot disk
+you may use the following command:
+	gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0
+</code>
+Ставим загрузчик:
+<code>
+# gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0
+bootcode written to ada0
+</code>
+Проверяем:
+<code>
+# zpool status
+  pool: tank
+ 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 Tue May 10 22:34:44 2016
+.08G scanned out of 196G at 8.42M/s, 6h35m to go
+.07G resilvered, 0.55% done
+config:
+	NAME                       STATE     READ WRITE CKSUM
+	tank                       DEGRADED     0     0     0
+	  mirror-0                 DEGRADED     0     0     0
+	    ada1p3                 ONLINE       0     0     0
+	    replacing-1            UNAVAIL      0     0     0
+	      9066085129501579450  UNAVAIL      0     0     0  was /dev/ada0p3/old
+	      ada0p3               ONLINE       0     0     0  block size: 512B configured, 4096B native  (resilvering)
+errors: No known data errors
+</code>

wiki/technical/ds/zfs_raid1.txt · Последнее изменение: 2022/12/08 15:38 — Diman