On Sun, 10 Aug 2008, Jeremy Chadwick wrote:

On Sun, Aug 10, 2008 at 06:01:34PM -0500, Larry Rosenman wrote:

You have one or more of the following:

1. Faulty ATA cable
2. Faulty ATA port
3. Faulty ATA controller (doubtful, unless the errors are specific
  to one role (e.g. master or slave))
4. A 2nd disk which is equally as bad (came from the same manufacturing
  batch, which is very likely if the drive is of the same vendor and
  model type, and manufacturing date (within a month or two))

We have a winner.  I replaced the cable, and we get a clean scrub:

  pool: vault
 state: ONLINE
 scrub: scrub completed with 0 errors on Sun Aug 10 20:46:37 2008
config:

        NAME        STATE     READ WRITE CKSUM
        vault       ONLINE       0     0     0
          raidz1    ONLINE       0     0     0
            ad6     ONLINE       0     0     0
            ad8     ONLINE       0     0     0
            ad10    ONLINE       0     0     0
            ad12    ONLINE       0     0     0
            ad14    ONLINE       0     0     0
          ad4s1f    ONLINE       0     0     0
          ad4s1e    ONLINE       0     0     0
          ad4s1d    ONLINE       0     0     0

errors: No known data errors

Much nicer.

Thanks, Jeremy!


--
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 512-248-2683                 E-Mail: [EMAIL PROTECTED]
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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