Why did my zpool replace never finish and what should I do now?

Posted by Josh on Server Fault See other posts from Server Fault or by Josh
Published on 2012-10-09T20:59:18Z Indexed on 2012/10/09 21:43 UTC
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zfs

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raid1

I have a ZFS zpool with two disks in a mirror configuration, da0 and da1. da1 failed, and so I replaced it with da2 using

zpool replace BearCow da1 da2

This ran for a few hours, during which zpool status showed that the array was being resilvered. When that finished, zpool status showed that the resilver was completed, but the array was still degraded...

I tried a zpool scrub and a zpool clear, but the array still shows as degraded:

[root@chef] ~# zpool status BearCow
  pool: BearCow
 state: DEGRADED
 scrub: scrub completed after 0h20m with 0 errors on Tue Oct  9 16:13:27 2012
config:

        NAME           STATE     READ WRITE CKSUM
        BearCow        DEGRADED     0     0     0
          mirror       DEGRADED     0     0     0
            da0        ONLINE       0     0     0
            replacing  DEGRADED     0     0     0
              da1      OFFLINE      0     0     0
              da2      ONLINE       0     0     0

errors: No known data errors

I can't zpool replace BearCow da1 da2 anymore because da2 is already a member of BearCow...

This is FreeBSD (FreeNAS) running ZFS pool version 15.

How do I get my array to show as healthy again?

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