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    SubjectRe: USB attached SATA disk idle spindown
    Stefan Richter wrote:
    > Johannes recently informed me that he wrote a script which is used like
    > a background daemon to stop idle USB disks. The script uses
    > - "cat /sys/block/${device}/stat" to watch disk activity,
    > - "sdparm -q -C stop /dev/${device}" to stop the motor after
    > longer inactivity.

    PS: I have seen START STOP UNIT with START=0 to be dangerous with some
    FireWire firmwares. (Motor cannot be restarted after that anymore.)
    Other firmwares ignore the START bit and look only at the POWER
    CONDITIONS field. I expect various similar firmware quirks in USB land.
    Stefan Richter
    -=====-==--- -==- ==---

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