Messages in this thread | | | From | "Jeremy Jackson" <> | Subject | Re: IDE and hot-swap disk caddies | Date | Thu, 28 Mar 2002 08:25:52 -0800 |
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I was suggesting that there are common cases where the electrical parts at the drive (single drive) end are taken care of.
what comes before is an hdparm -b 2 (tristate), then power off drive, then yank it out. (if the PCI chipset supports it, and the driver supplies a control method)
The parts that are still rough are when you put it back in, it doesn't have the benefit of the BIOS transfer speed/type initialization, or the ide driver's bus scan.
Bottom line for me, I think there's enough merit to this (although not 100% - you can only dress up frankenstein so much) , and I'm working on cleanups, so please don't remove the code from the next version, and anyone else working on it, please continue, that's all.
Jeremy
----- Original Message ----- From: "Alan Cox" <alan@lxorguk.ukuu.org.uk> To: "Jeremy Jackson" <jerj@coplanar.net> Sent: Thursday, March 28, 2002 1:33 AM Subject: Re: IDE and hot-swap disk caddies
> > -some very cheap IDE swap bays have a mechanical interlock > > with the power switch. Your turn the key, and the drive shuts > > off, before you can pull it out. power sequencing solved? don't > > No - you also have to isolate the IDE bus > > > -PCMCIA has electrical hot swap support...? > > Yes - but PCMCIA is effectively hot swap ISA bus, the controller is on > the pcmcia card - different ball game > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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