On Thu, Nov 29, 2001 at 10:16:02AM -0600, Brian Grayson (home) wrote:
> On Fri, Nov 30, 2001 at 02:29:13AM +1100, Simon Burge wrote:
> > 
> > You're disk probably has write-caching enabled.  If I recall correctly,
> > just about all (modern?) IDE disks by default enable write-caching.
> 
>   Here's the atactl output.  The drive is from around 1995.  I have
> another drive that says it has write-cache from atactl output, so I
> think this one must not since it says nothing.  Or maybe it has
> non-standard write-caching?

Yes, I've one disk like this too. Doesn't say it has a cache, doesn't
offer a way to disable it, but obviously has one:
the clean bit on the superblock is lost when I use 'reboot' with
options CPURESET_DELAY=0
It supports the FLUSH_CACHE command, though ...

--
Manuel Bouyer <bouyer@antioche.eu.org>
--