Differences

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--- zfs:troubleshooting:replace_a_disk [2021/10/13 23:48] – [Replace the Old Device] peter
+++ zfs:troubleshooting:replace_a_disk [2021/10/13 23:58] (current) – [Replace the Old Device] peter
@@ Line 87: / Line 87: @@
   * If this case, try specifying it by device name or by GUID.
-Get the GUID:
+----
+There are various ways to determine a GUID:
+<code bash>
+zdb               # Find GUID.
+zdb -l /dev/sda1  # In case the 'zdb' command does not work.
+zpool status -g   # Find GUID.
+zpool status -L   # Find device name, resolving links.
+</code>
+----
+Try to get the GUID using zdb:
 <code bash>
-root@zeus:/dev# zdb
+zdb
-hermes:
+testpool:
     version: 28
-    name: 'hermes'
+    name: 'testpool'
     state: 0
     txg: 162804
     pool_guid: 14829240649900366534
-    hostname: 'zeus'
+    hostname: 'BigMamba'
     vdev_children: 1
     vdev_tree:
@@ Line 153: / Line 166: @@
 </WRAP>
+Use the GUID to offline the old device:
-----
+<code bash>
+zpool offline testpool 15935140517898495532
+</code>
+And check this has worked:
 <code bash>
-zdb               # Find GUID.
+zpool status
-zdb -l /dev/sda1  # In case the 'zdb' command does not work.
+  pool: testpool
-zpool status -g   # Find GUID.
+ state: DEGRADED
-zpool status -L   # Find device name, resolving links.
+status: One or more devices has been taken offline by the administrator.
+        Sufficient replicas exist for the pool to continue functioning in a
+        degraded state.
+action: Online the device using 'zpool online' or replace the device with
+        'zpool replace'.
+  scan: scrub repaired 0 in 2h4m with 0 errors on Sun Jun  9 00:28:24 2013
+config:
+        NAME                         STATE     READ WRITE CKSUM
+        testpool                     DEGRADED     0     0     0
+          raidz1-0                   DEGRADED     0     0     0
+            ata-ST3300620A_5QF0MJFP  ONLINE       0     0     0
+            ata-ST3300831A_5NF0552X  OFFLINE      0     0     0
+            ata-ST3200822A_5LJ1CHMS  ONLINE       0     0     0
+            ata-ST3200822A_3LJ0189C  ONLINE       0     0     0
+errors: No known data errors
+</code>
+and then replace the pool:
+<code bash>
+zpool replace testpool 15935140517898495532 /dev/disk/by-id/ata-ST3500320AS_9QM03ATQ
+</code>
+And check again this has worked:
+<code bash>
+zpool status
+  pool: testpool
+ 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 Sun Jun  9 01:44:36 2013
+M scanned out of 419G at 20,4M/s, 5h50m to go
+M resilvered, 0,10% done
+config:
+        NAME                            STATE     READ WRITE CKSUM
+        testpool                        DEGRADED     0     0     0
+          raidz1-0                      DEGRADED     0     0     0
+            ata-ST3300620A_5QF0MJFP     ONLINE       0     0     0
+            replacing-1                 OFFLINE      0     0     0
+              ata-ST3300831A_5NF0552X   OFFLINE      0     0     0
+              ata-ST3500320AS_9QM03ATQ  ONLINE       0     0     0  (resilvering)
+            ata-ST3200822A_5LJ1CHMS     ONLINE       0     0     0
+            ata-ST3200822A_3LJ0189C     ONLINE       0     0     0
+errors: No known data errors
 </code>
-  * If zdb does not output anything, try specifying the device.
 </WRAP>