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    SubjectSeagate Barracuda 7200.11 ST31500341AS fw SD17
    Date
    Hello!

    I have some Seagate Barracuda 7200.11 ST31500341AS 1.5TB drives. They
    use the firmware SD17.
    They time out at the flush write cache and sometimes on the identify
    command.
    I know that sounds suspicious so I wrote to seagate but they told me my
    drives are ok. (Although I dont think so.)

    This drive+fw is blacklisted in the kernel, but there is no firmware
    upgrade for these drives. (Only very few serial numbers are able to
    upgrade.)

    Now I want to know after what period of the time the kernel timeouts at
    these commands!? And if this timeout can be increased (manually, small
    patch for the kernel) and the min/max/avg time could somehow be
    messured. Every timeout kicks the drives off the raid, so I disabled
    the write cache (hdparm -W0 /dev/sdx) but thats no solution, just a bad
    workaround.

    Its a amd64 system with the 2.6.29.4 on an AM3 board with AMDs 790GX +
    SB750 Chipsets running in ahci mode.

    Thanks for your time and support!

    Markus

    PS: Please CC me!


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