I am trying to get over these SATA SSD errors -

smartctl command failed to read the SATA SSD - SATA is not supported

what could be the reason for errors? does this mean that SSD has reached EOL & needs to be replacement?

errors: No known data errors

pool: zpool1216
state: DEGRADED
status: One or more devices are faulted in response to persistent errors.
Sufficient replicas exist for the pool to continue functioning in a
degraded state.
action: Replace the faulted device, or use 'zpool clear' to mark the device repaired.
scan: scrub repaired 0 in 0h24m with 0 errors on Fri May 18 14:31:08 2012 config:

    NAME          STATE     READ WRITE CKSUM
    zpool1216     DEGRADED     0     0     0
      raidz1-0    ONLINE       0     0     0
        c11t10d0  ONLINE       0     0     0
        c11t11d0  ONLINE       0     0     0
        c11t12d0  ONLINE       0     0     0
        c11t13d0  ONLINE       0     0     0
        c11t14d0  ONLINE       0     0     0
        c11t15d0  ONLINE       0     0     0
        c11t16d0  ONLINE       0     0     0
        c11t1d0   ONLINE       0     0     0
        c11t2d0   ONLINE       0     0     0
        c11t3d0   ONLINE       0     0     0
        c11t4d0   ONLINE       0     0     0
        c11t5d0   ONLINE       0     0     0
        c11t6d0   ONLINE       0     0     0
        c11t7d0   ONLINE       0     0     0
        c11t8d0   ONLINE       0     0     0
        c11t9d0   ONLINE       0     0     0
    logs
      c9d0        FAULTED      0     0     0  too many errors
    cache
      c10d0       FAULTED      0    17     0  too many errors