[CentOS] Best mkfs.ext2 performance options on RAID5 in CentOS 4.2
jlb17 at duke.edu
Tue Nov 1 18:06:46 UTC 2005
On Tue, 1 Nov 2005 at 11:43am, Aleksandar Milivojevic wrote
> What I found with an old(er) 3ware 7500-8 (does not use same device driver as
> 9xxx cards) in RAID5 configuration was that it makes big difference using
> or ext3 (doubles the write speed, no effect on read speed). With ext3 I used
> internal journal (external migh have helped, but haven't tested it).
I tested with an external journal on a hardware (8506-2) RAID1 of 2 WD
Raptor drives, and it made no difference. What *did* make a difference
was using XFS (via the centosplus kernel), but I didn't trust that in
production. I ended up going to software RAID, which got good local
speeds. I'm discovering now, though, that the NFS performance sucks.
Department of Biomedical Engineering
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