Re: [PATCH 0/4] (RESEND) ext3[34] barrier changes

From: Theodore Tso
Date: Wed May 21 2008 - 14:32:25 EST

On Wed, May 21, 2008 at 11:03:24AM -0700, Andrew Morton wrote:
> afaik there is no need to enable this feature if the machine (actually
> the disks) are on a UPS, yes?

Yes, as long as you're confident that there won't be a kernel
bug/regression causing a lockup while the server is under severe
memory pressure while doing lots of fsync's, file creations, renames,
etc. And as long as your 100% confident that UPS's will never fail,
janitors will never accidentally hit the Emergency Power Office
switch, and so on.

- Ted
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