On Fri, 6 Jan 2006 at 11:47am, Mickael Maddison wrote
> Friday, January 6, 2006, 11:16:31 AM, you wrote:
>> Yes, I'm aware of all that. I've been using 3wares for *years* (as
>> giggle would easily have revealed). But, as the archives of this list
>> will attest to, using these boards in hardware RAID mode in centos 4 is
>> bad news. Performance sucks. There's some sort of nasty interaction
>> between the 3wares and ext3 which makes the combo unusable, really. And
>> we all know the upstream provider's stance on XFS.
>
> I have a number of machines running 3ware cards on CentOS 3/4 and I
> haven't had any trouble with them in HW RAID.
I guess it depens on your definition of "trouble". These are benchmarks I
ran on this system with the 2 3wares in hardware RAID5 and a software
RAID0 across them:
write read
----- ----
ext2 81 180
ext3 34 222
XFS 109 213
That ext3 write speed was something I just wasn't willing to live with on
a system that used to perform so much better (running RH7.3, hw RAID, and
XFS).
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University