Messages in this thread | | | Subject | Re: Possible bug and question about ide_notify_reboot in drivers/ide/ide.c (2.4.19) | From | Alan Cox <> | Date | 14 Sep 2002 14:37:35 +0100 |
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On Sat, 2002-09-14 at 10:53, Matthias Andree wrote: > How about this: The FLUSH CACHE command has only recently become a > mandatory command for non-PACKET devices, so there may be drives that do > implement a write cache, but do NOT implement the FLUSH CACHE -- and > still adhere to some older edition of the ATA standard.
Worse than that. There are drives that did implement it - as a no-op. They didn't even say "Umm sorry no can do"
> See above. Disable Write Cache would also do with recent drives.
Except some drives have a habit of turning it back on quietly
> If I recall correctly, Windows' shutdown procedure was at some time in > the past changed to wait a couple of seconds before switching the ATX > computers off, to allow the drives to flush their caches. I can't quote > on a KB article though.
Flush on shutdown was apparently one of the windows 98 service pack/hot fix additions.
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