# [OmniOS-discuss] ZFS Checksum problem

"Daniel D. Gonçalves" daniel at dgnetwork.com.br
Mon Jul 1 20:28:00 UTC 2013

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    iostat -Exn result:

    c15t35d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F27E4X
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0
    c15t18d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F27DCD
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0

    c15t21d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F21NPM
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0
    c15t22d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F27CFV
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0

    c15t17d1         Soft Errors: 5 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F21TA7
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 5
    Illegal Request: 0 Predictive Failure Analysis: 0
    c15t19d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F28PSJ
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0

    c15t23d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F27EHT
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0
    c15t24d1         Soft Errors: 4 Hard Errors: 0 Transport Errors: 0
    Vendor: ATA      Product: ST3000DM001-1CH1 Revision: CC24 Serial No:
    Z1F27796
    Size: 3000.59GB <3000592982016 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 4
    Illegal Request: 0 Predictive Failure Analysis: 0

    fmadm faulty result:

    --------------- ------------------------------------ --------------
    ---------
    TIME            EVENT-ID MSG-ID         SEVERITY
    --------------- ------------------------------------ --------------
    ---------
    Jun 29 14:48:38 09217f5b-2ded-e74c-bef3-fbaec52391ed ZFS-8000-GH    Major

    Host        : storage01
    Platform    : SandyBridge-Platform      Chassis_id  : To-be-filled-by-O.E.M.
    Product_sn  :

    Fault class : fault.fs.zfs.vdev.checksum
    Affects     : zfs://pool=STORAGE01/vdev=40200696be7be968
                       faulted but still in service
    Problem in  : zfs://pool=STORAGE01/vdev=40200696be7be968
                       faulted but still in service

    Description : The number of checksum errors associated with a ZFS device
                   exceeded acceptable levels.  Refer to
                   http://illumos.org/msg/ZFS-8000-GH for more information.

    Response    : The device has been marked as degraded.  An attempt
                   will be made to activate a hot spare if available.

    Impact      : Fault tolerance of the pool may be compromised.

    Action      : Run 'zpool status -x' and replace the bad device.

    Already ran the SCRUB several times, but checksum errors occur again,
    only this 8 HDDs.
    Remembering, SATA and power cables have been swapped.

    Daniel

    Em 01/07/2013 17:15, Saso Kiselkov escreveu:
    > 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,

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