Messages in this thread | | | Date | Wed, 03 Dec 2003 18:36:28 -0500 | From | Jeff Garzik <> | Subject | Re: Serial ATA (SATA) for Linux status report |
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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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