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    SubjectRe: CMD680, kernel 2.4.21, and heartache
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    Erik Bourget <erik@midmaine.com> writes:

    > John Bradford <john@grabjohn.com> writes:
    >
    >>> Some factors that are definitely NOT a problem: - Faulty run of drives.
    >>> This has also happened to Hitachi 80GB drives in the same configurations.
    >>>
    >>> - Heat. They're in a chilly room. The cases haven't overheated. We've had
    >>> guys checking this every few hours after the first one went bonkers.
    >>>
    >>> Possible problems -
    >>> - Simple software problem that somebody can fix and save the day. :)
    >>> - All Dell Poweredge 650 servers are broken. :/
    >>
    >>> Oct 1 07:47:47 mailstore2-1 kernel: hda: dma_intr: status=0x51 { DriveReady
    >>> SeekComplete Error } Oct 1 07:47:47 mailstore2-1 kernel: hda: dma_intr:
    >>> error=0x40 { UncorrectableError }, LBAsect=37694874, high=2, low=4140442,
    >>> sector=35220864
    >>
    >> That is definitely an error from the drive. If you're absolutely sure
    >> it's not a faulty batch of drives or a cooling issue, maybe you have
    >> power supply problems? Does SMART give you any useful information?
    >>
    >> John.
    >
    > Not power supply problems; two of the machines that have this problem are
    > located in different facilities even. What's SMART?
    >

    Figured out SMART. Looks bad:

    mailstore2-1:/home/erik# smartctl -a /dev/hda
    Device: IC35L120AVV207-0 Supports ATA Version 6
    Drive supports S.M.A.R.T. and is enabled
    Check S.M.A.R.T. Passed.

    General Smart Values:
    Off-line data collection status: (0x85) Offline data collection activity was
    aborted by an interrupting command

    Self-test execution status: ( 245) Self-test routine in progess
    50% of test remaining

    Total time to complete off-line
    data collection: (2855) Seconds

    Offline data collection
    Capabilities: (0x1b)SMART EXECUTE OFF-LINE IMMEDIATE
    Automatic timer ON/OFF support
    Suspend Offline Collection upon new
    command
    Offline surface scan supported
    Self-test supported

    Smart Capablilities: (0x0003) Saves SMART data before entering
    power-saving mode
    Supports SMART auto save timer

    Error logging capability: (0x01) Error logging supported

    Short self-test routine
    recommended polling time: ( 1) Minutes

    Extended self-test routine
    recommended polling time: ( 48) Minutes

    Vendor Specific SMART Attributes with Thresholds:
    Revision Number: 16
    Attribute Flag Value Worst Threshold Raw Value
    ( 1)Raw Read Error Rate 0x000b 095 095 060 458761
    ( 2)Throughput Performance 0x0005 148 148 050 264
    ( 3)Spin Up Time 0x0007 100 100 024 291
    ( 4)Start Stop Count 0x0012 100 100 000 6
    ( 5)Reallocated Sector Ct 0x0033 100 100 005 7
    ( 7)Seek Error Rate 0x000b 100 100 067 0
    ( 8)Seek Time Preformance 0x0005 123 123 000 37
    ( 9)Power On Hours 0x0012 100 100 000 709
    ( 10)Spin Retry Count 0x0013 100 100 060 0
    ( 12)Power Cycle Count 0x0032 100 100 000 6
    (192)Power-Off Retract Count 0x0032 100 100 050 21
    (193)Load Cycle Count 0x0012 100 100 050 21
    (194)Temperature 0x0002 196 196 000 1441854
    (196)Reallocated Event Count 0x0032 100 100 000 7
    (197)Current Pending Sector 0x0022 100 100 000 3
    (198)Offline Uncorrectable 0x0008 100 100 000 3
    (199)UDMA CRC Error Count 0x000a 200 200 000 0
    SMART Error Log:
    SMART Error Logging Version: 1
    Error Log Data Structure Pointer: 01
    ATA Error Count: 1
    Non-Fatal Count: 0

    Error Log Structure 1:
    DCR FR SC SN CL SH D/H CR Timestamp
    00 00 08 22 1d 3f e0 25 1851604
    00 00 08 aa 2b 3f e0 25 1851604
    00 00 08 6a 1d 3f e0 25 1851604
    00 00 08 02 96 3f e0 25 1851604
    00 00 08 9a 2d 3f e0 25 1851604
    00 40 08 9a 2d 3f e2 51 0
    Error condition: 0 Error State: 3
    Number of Hours in Drive Life: 660 (life of the drive in hours)

    Eep.

    Are these errors set by the drive itself, or could a faulty harddrive
    controller / driver cause them? FWIW, I spoke offline to somebody about this
    last week who seemed to think that it was an Alan Cox APIC bug.

    - Erik

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