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    SubjectRe: Serial ATA (SATA) for Linux status report
    Andre Tomt wrote:
    > On Wed, 2003-12-03 at 21:44, Jeff Garzik wrote:
    >
    >>Intel ICH5
    >>----------
    >>Summary: No TCQ. Looks like a PATA controller, but with a few added,
    >>non-standard SATA port controls.

    > One question - with "including hotplug", does that mean some set hotplug
    > standard? Reason I'm asking is, we have a few servers from SuperMicro,
    > with a ICH5R S-ATA controller that claims it's supporting hotplug, but
    > hotplug is not in your ICH5-summary.

    Alas, there is no hotplug support in the ICH5 or ICH5-R SATA hardware.

    One could argue there is "coldplug" support in that hardware -- disable
    the entire interface, including any active devices, then re-enable and
    re-scan -- but it's a bit of a hack. If there's enough demand, I could
    write some code for that. It would involve something like

    # /sbin/sata off
    { plug in or remove a device }
    # /sbin/sata on

    You really, really, really don't want to actually unplug a SATA drive
    while it's active, on ICH5 hardware.

    Jeff



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