Re: Questions about XFS

[Jason White <jasonjgw@xxxxxxxxxxxxxxxx>]

On Fri, Mar 16, 2007 at 11:36:31AM +0100, Martin Steigerwald wrote:
 
> Since 2.6.17.7 and enabled write barriers I didn't loose meta data 
> consistency on my laptop anymore and I can tell you that it crashed a lot 
> due to my experiments with what not (especially OSS radeon drivers and 
> beryl;-). I also had some classical power outages. 

My laptop also supports write barriers, but I leave the battery in place in
case there's a power outage; effectively it's operating as a UPS.

This might be slightly off-topic, but in choosing a SATA drive for a desktop
machine, what features/standard-complaince should one look for in order to
ensure that write barriers work? I know this involves flushing the drive
cache, but is this support mandatory in any of the applicable standards?