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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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