# [OmniOS-discuss] ZFS Checksum problem

Saso Kiselkov skiselkov.ml at gmail.com
Mon Jul 1 20:15:48 UTC 2013

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    On 01/07/2013 21:00, "Daniel D. Gonçalves" wrote:
    > I'm having trouble checksum in my ZFS pool, I tried to change data
    > cables and power of HDDs, but the problems remain.
    > All 8 HDDs that are exhibiting errors are identicaland all is on the
    > same controller.
    >
    >         NAME          STATE     READ WRITE CKSUM
    >         STORAGE01     DEGRADED     0     0   347
    >           mirror-0    DEGRADED     0     0   188
    >             c15t35d1  DEGRADED     0     0   188  too many errors
    >             c15t18d1  DEGRADED     0     0   188  too many errors
    >           mirror-1    DEGRADED     0     0   170
    >             c15t21d1  DEGRADED     0     0   170  too many errors
    >             c15t22d1  DEGRADED     0     0   170  too many errors
    >           mirror-2    DEGRADED     0     0   164
    >             c15t17d1  DEGRADED     0     0   164  too many errors
    >             c15t19d1  DEGRADED     0     0   164  too many errors
    >           mirror-3    DEGRADED     0     0   172
    >             c15t24d1  DEGRADED     0     0   172  too many errors
    >             c15t23d1  DEGRADED     0     0   172  too many errors
    >           mirror-5    ONLINE       0     0     0
    >             c15t25d1  ONLINE       0     0     0
    >             c15t27d1  ONLINE       0     0     0
    >           mirror-6    ONLINE       0     0     0
    >             c15t26d1  ONLINE       0     0     0
    >             c15t28d1  ONLINE       0     0     0
    >           mirror-7    ONLINE       0     0     0
    >             c15t29d1  ONLINE       0     0     0
    >             c15t31d1  ONLINE       0     0     0
    >           mirror-8    ONLINE       0     0     0
    >             c15t32d1  ONLINE       0     0     0
    >             c15t30d1  ONLINE       0     0     0
    >         logs
    >           mirror-4    ONLINE       0     0     0
    >             c14t1d0   ONLINE       0     0     0
    >             c14t3d0   ONLINE       0     0     0
    >         cache
    >           c14t4d0     ONLINE       0     0     0
    >
    > Smartinfo:
    >
    >  c15t17d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       40
    > °C       Z1F21TA7       without error       short long abort log
    >  c15t18d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       41
    > °C       Z1F27DCD       without error       short long abort log
    >  c15t19d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       39
    > °C       Z1F28PSJ       without error       short long abort log
    >  c15t21d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       35
    > °C       Z1F21NPM       without error       short long abort log
    >  c15t22d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       38
    > °C       Z1F27CFV       without error       short long abort log
    >  c15t23d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       40
    > °C       Z1F27EHT       without error       short long abort log
    >  c15t24d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       41
    > °C       Z1F27796       without error       short long abort log
    >  c15t35d1       3001 GB       STORAGE01       mirror       DEGRADED
    >   S:4 H:0 T:0       ST3000DM001-1CH166       sat,12  PASSED       25
    > °C       Z1F27E4X       without error       short long abort log
    >
    > HD Info:
    >
    > smartctl 6.0 2012-10-10 r3643 [i386-pc-solaris2.11] (local build)
    > Copyright (C) 2002-12, Bruce Allen, Christian Franke, www.smartmontools.org
    >
    > === START OF INFORMATION SECTION ===
    > Model Family:     Seagate Barracuda 7200.14 (AF)
    > Device Model:     ST3000DM001-1CH166
    > Serial Number:    Z1F21TA7
    > LU WWN Device Id: 5 000c50 04f6f0c73
    > Firmware Version: CC24
    > User Capacity:    3,000,592,982,016 bytes [3.00 TB]
    > Sector Sizes:     512 bytes logical, 4096 bytes physical
    > Rotation Rate:    7200 rpm
    > Device is:        In smartctl database [for details use: -P show]
    > ATA Version is:   ATA8-ACS T13/1699-D revision 4
    > SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
    > Local Time is:    Mon Jul  1 16:56:42 2013 BRT
    >
    > Can anyone help me?

    Try iostat -Exn and have a look at "fmadm faulty" to see if you can
    pinpoint the fault source.

    Cheers,
    --
    Saso

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