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    Synology – Speedup RAID rebuild time

    A rebuild of a failed disk can by design take two days.
    If you raise the “speed limit” it can go faster.

    Have two files:

    Old versions of DSM (Synology firmware) has a limit in “speed_limit_min” of 1000.
    New versions have 10000.
    Remember to use the newest version of DSM, but you can still edit the value by hand.
    echo 20000 > /proc/sys/dev/raid/speed_limit_min

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