[OpenIndiana-discuss] [zfs] problem on my zpool

[Edward Ned Harvey (openindiana)]

> From: Clement BRIZARD [mailto:clement at brizou.fr]
> 
> 	NAME                         STATE     READ WRITE CKSUM
> 	nas                          UNAVAIL     63     2     0  insufficient replicas
> 	  raidz1-0                   DEGRADED     0     0     0
> 	    c8t50024E9004993E6Ed0p0  ONLINE       0     0     0
> 	    c8t50024E92062E7524d0    ONLINE       0     0     0
> 	    c8t50024E900495BE84d0p0  ONLINE       0     0     0
> 	    c8t50014EE25A5EEC23d0p0  ONLINE       0     0     0
> 	    c8t50024E9003F03980d0p0  ONLINE       0     0     1  (repairing)
> 	    c8t50014EE2B0D3EFC8d0    ONLINE       0     0     0
> 	    c8t50014EE6561DDB4Cd0p0  DEGRADED     0     0   211  too many
> errors  (repairing)
> 	    c8t50024E9003F03A09d0p0  ONLINE       0     0    18  (repairing)
> 	  raidz1-1                   UNAVAIL    131     9     0  insufficient replicas
> 	    c50t8d0                  REMOVED      0     0     0  (repairing)
> 	    c2d0                     ONLINE       0     0     0  (repairing)
> 	    c1d0                     ONLINE       0     0     0  (repairing)
> 	    c50t11d0                 ONLINE       0     0     0  (repairing)
> 	    c50t10d0                 REMOVED      0     0     0

Something bad happened.  You've had more failures than the redundancy level protects - which means some data is lost.

Sometimes other people here chime in with zdb debugging information and other stuff, that helps you recover gracefully - but the first and most obvious question is backups.  Do you have backups you could restore from?

Also, it's not clear what the cause of failure is.  Could be two disks coincidentally going bad at the same time.  Could be controller failure.  Or CPU or memory error.  Could be you're running on unsupported hardware with some kind of driver or firmware bug.  Even if you can restore, will the problem soon come back?  Not clear based solely on what info you've provided...