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).