[Lustre-discuss] thumper disk write cache patch

[Jody McIntyre]

On Fri, Nov 02, 2007 at 10:11:10AM +0800, Andreas Dilger wrote:

> have you looked at submitting this patch to the upstream driver maintainers
> and/or Red Hat?  It looks like the patch is hard coded to disable the write
> cache, but it would be desirable to allow this to be a tunable parameter
> (e.g. module parameter, or /proc setting?)

Actually, this patch is against the out-of-tree Marvell driver
(mv_sata), not the in-kernel driver (sata_mv.)  Why are you still using
this driver?  You should really be using the in-kernel driver (and
fixing it if needed) since mv_sata is abit of a dead end.

Cheers,
Jody

> > Martin Gasthuber wrote:
> > >    we are in the process of configuring a thumper (Sun X4500) running  
> > > RHEL 4.5 as an OSS/OST - for this we need a patch for the Sun-Marvell  
> > > driver to disable the disk write cache - did anybody has this patch ???
> 
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Software Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
> 
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