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I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O ...
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  1. #1
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    Data integrity tool...?


    I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O load to a raw device and then perform some kind of data verification on the device. I my case the raw device will be md raid5 array. Any suggestions?

  2. #2
    Trusted Penguin Irithori's Avatar
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    Code:
    man badblocks
    Code:
    badblocks -svw <DEVICE>
    will overwrite the whole <DEVICE> four times with these patterns: 10,01,11,00
    After each write, there is a read of the whole device.
    So this takes a while.

    Warning:
    The option -w will do _writes_
    So all data on the device will be overwritten and lost.
    You must always face the curtain with a bow.

  3. #3
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    Thanks, I'll give that a try.

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