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--- computers:server:ubuntu10.04lts_hydra [2011/12/06 22:55] – [Raid] david
+++ computers:server:ubuntu10.04lts_hydra [2013/09/30 20:29] (current) – [Update] david
@@ Line 39: / Line 39: @@
   - Turn our hard drives into a raid array:  <code>
 sudo zpool create media -m /storage raidz /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf
+</code>
+==== Import ====
+The update repository appears to be broken, so I might need to re-install the OS on hydra.  According to a post I found, all I need to do is "import" the pool.
+  * [[http://forums.freebsd.org/showthread.php?t=16807]] <- a couple posts down
+  * With all drives installed and spun up: <code>
+zpool import
+</code>
+  * Just import your pool now! <code>
+zpool import <poolname>
+</code>
+<code>
+With all of the drives in the system, just run zpool import.
+That will scan all the drives for ZFS metadata, and will show any pools that can be imported.
+Then you just import the one you want via zpool import <poolname>.
 </code>
@@ Line 47: / Line 65: @@
 "You should add your drives using the /dev/disk/by-id directory.  That way the drive will be picked up consistently regardless of the device node in /dev/. "
-What happens if you replace the drive though?  Doesn't that change the ID?  I guess you can remove the offending drive and then add the new drive id.
+==== Drive Failure ====
+  * **2013.09.30** - Looks like we might have had a drive failure.  I know in the past, one of the drives was flaky and would not show up because of a cable issue (swapped cables, and it worked).
+  * Drive identification: (just pasting in the drives in the raid alive<code>
+# status as of today 2013.09.30
+#sudo zpool status -v media
+  pool: media
+ 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://www.sun.com/msg/ZFS-8000-2Q
+ scrub: none requested
+config:
+	NAME        STATE     READ WRITE CKSUM
+	media       DEGRADED     0     0     0
+	  raidz1-0  DEGRADED     0     0     0
+	    sdb     ONLINE       0     0     0
+	    sdc     ONLINE       0     0     0
+	    sdd     ONLINE       0     0     0
+	    sde     ONLINE       0     0     0
+	    sdf     UNAVAIL      0     0     0  cannot open
+errors: No known data errors
+#ls /dev/disk/by-id/ -la
+lrwxrwxrwx 1 root root   9 Sep 30 15:44 scsi-SATA_ST2000DL003-9VT_5YD24VFW -> ../../sde
+lrwxrwxrwx 1 root root   9 Sep 30 15:44 scsi-SATA_ST2000DL003-9VT_5YD2J987 -> ../../sdc
+lrwxrwxrwx 1 root root   9 Sep 30 15:44 scsi-SATA_ST2000DL003-9VT_5YD2K8XW -> ../../sdb
+lrwxrwxrwx 1 root root   9 Sep 30 15:44 scsi-SATA_ST2000DL003-9VT_5YD2K90G -> ../../sdd
+</code>
 ====== Software ======