Hi all,

on a x4500 with a relatively well patched Sol10u8

# uname -a
SunOS s13 5.10 Generic_141445-09 i86pc i386 i86pc

I've started a scrub after about 2 weeks of operation and have a lot of 
checksum errors:

s13:~# zpool status                                         
  pool: atlashome                                           
 state: DEGRADED                                            
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors  
        using 'zpool clear' or replace the device with 'zpool replace'.     
   see: http://www.sun.com/msg/ZFS-8000-9P                                  
 scrub: resilver in progress for 1h17m, 8.96% done, 13h5m to go             
config:                                                                     

        NAME          STATE     READ WRITE CKSUM
        atlashome     DEGRADED     0     0     0
          raidz1      ONLINE       0     0     0
            c0t0d0    ONLINE       0     0     0
            c1t0d0    ONLINE       0     0     0
            c5t0d0    ONLINE       0     0     0
            c7t0d0    ONLINE       0     0     0
            c8t0d0    ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            c0t1d0    ONLINE       0     0     0
            c1t1d0    ONLINE       0     0     0
            c5t1d0    ONLINE       0     0     0
            c6t1d0    ONLINE       0     0     6
            c7t1d0    ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            c8t1d0    ONLINE       0     0     0
            c0t2d0    ONLINE       0     0     0
            c1t2d0    ONLINE       0     0     0
            c5t2d0    ONLINE       0     0     2
            c6t2d0    ONLINE       0     0     1
          raidz1      ONLINE       0     0     0
            c7t2d0    ONLINE       0     0     0
            c8t2d0    ONLINE       0     0     0
            c0t3d0    ONLINE       0     0     0
            c1t3d0    ONLINE       0     0     0
            c5t3d0    ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            c6t3d0    ONLINE       0     0     0
            c7t3d0    ONLINE       0     0     0
            c8t3d0    ONLINE       0     0     0
            c0t4d0    ONLINE       0     0     0
            c1t4d0    ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            c5t4d0    ONLINE       0     0     0
            c7t4d0    ONLINE       0     0     0
            c8t4d0    ONLINE       0     0     0
            c0t5d0    ONLINE       0     0     1
            c1t5d0    ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            c5t5d0    ONLINE       0     0     0
            c6t5d0    ONLINE       0     0     0
            c7t5d0    ONLINE       0     0     0
            c8t5d0    ONLINE       0     0     1
            c0t6d0    ONLINE       0     0     0
          raidz1      DEGRADED     0     0     0
            spare     DEGRADED     0     0     0
              c1t6d0  DEGRADED     6     0    17  too many errors
              c8t7d0  ONLINE       0     0     0  11.8G resilvered
            c5t6d0    ONLINE       0     0     0
            c6t6d0    ONLINE       0     0     0
            c7t6d0    ONLINE       0     0     1
            c8t6d0    ONLINE       0     0     1
          raidz1      ONLINE       0     0     0
            c0t7d0    ONLINE       0     0     0
            c1t7d0    ONLINE       0     0     1
            c5t7d0    ONLINE       0     0     0
            c6t7d0    ONLINE       0     0     0
            c7t7d0    ONLINE       0     0     0
        logs
          c6t4d0      ONLINE       0     0     0
        spares
          c8t7d0      INUSE     currently in use


So far, it seems that the pool survived it, but I'm a bit worried how to trace 
down the problem of this.

Any suggestion how to proceed?

Cheers

Carsten
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