Messages in this thread | | | From | "Kevin P. Fleming" <> | Subject | Re: Disk hardware caching, performance, and journalling | Date | Sun, 25 Nov 2001 14:45:57 -0700 |
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I think if you have a large mail server and zero power protection, you've got much larger problems to worry about than write-behind caching on your disk drives... my servers have never (in my memory) experienced a catastrophic power failure, because they're too easy to avoid.
----- Original Message ----- From: "Chris Wedgwood" <cw@f00f.org> To: "Mark Hahn" <hahn@physics.mcmaster.ca> Cc: <linux-kernel@vger.kernel.org> Sent: Sunday, November 25, 2001 2:23 AM Subject: Re: Disk hardware caching, performance, and journalling
> On Sat, Nov 24, 2001 at 02:39:44PM -0500, Mark Hahn wrote: > > why does everyone get freaked out about disk caches? afaikt, > there's only an O(50ms) window at each catastrophic power failure: > trivial for any reasonable rate of failures... > > If your disks are busy all the time (eg. a large mail server) then you > will trivially hit this and it will be a problem. > > > > --cw > - > 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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