Aug 312012

Well this post will be very fast. Seagate sata disk 1.5TB or 2 TB are bad out of the box. The quality of those disk are horrible. I bought 10 disks I replace one every month. ZFS check so weel the disks that it see too many errors to quickly… as oppose to ntfs filesystem on windows that will never check for error while running.

The case below show a brand new disk been inserted into a ZFS pool that even while resilversing (reconstructing the zpool array) fails. It’s not an exception in the last 6 month I inserted 5-6 disks that failed just more or less one month of usage.

% zpool status
  pool: mypool
 state: DEGRADED
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
 scan: resilver in progress since Fri Aug 31 16:32:11 2012
    55.8M scanned out of 4.12T at 325K/s, (scan is slow, no estimated time)
    55.8M scanned out of 4.12T at 325K/s, 3783h7m to go
    9.30M resilvered, 0.00% done

        NAME              STATE     READ WRITE CKSUM
        mypool            DEGRADED     0     0     0
          raidz1-0        DEGRADED     0     0     0
            replacing-0   DEGRADED     0     0     0
              c0t2d0/old  OFFLINE      0     0     0
              c0t2d0/old  FAULTED      0     0     0  too many errors
              c0t2d0      ONLINE       0     0     0  (resilvering)
            c0t3d0        ONLINE       0     0     0
            c0t4d0        ONLINE       0     0     0
            c0t5d0        ONLINE       0     0     0
            c0t6d0        ONLINE       0     0     0
            c0t7d0        ONLINE       0     0     0

errors: No known data errors


In conclusion Seagate change the warranty from 5 years to 1 year on all it’s disk, and the 1 yr is  from fab date. The worst it that if you buy a few disks in advance they wont be under warranty by the time you use them. Seagate is very bad! We should neversay say never but to hell Seagate.

2 Responses to “Seagate disk with ZFS are very BAD”

  1. Mariel says:

    What exactly really moved u to publish “Panoramic Solution”

  2. Rejean says:

    To share some of my knowledge to the world.

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