3Ware 7500-4 Slow
Francisco
francisco at natserv.net
Thu Sep 22 19:14:00 PDT 2005
On Mon, 5 Sep 2005, Chuck Swiger wrote:
> Small writes are pretty much the worst-case scenario for RAID-5,
Such as mail servers?
How about for a DB server which is mostly read only?
> normal to see a very significant performance drop-- by up to an order of
> magnitude-- from the performance of a bare drive.
At which point Raid 5 starts to perform better?
6,8,10 drives?
How about RAID 10 for a DB server?
I have been trying to convince the "powers that be" that SCSI would be
much better.. but the price difference is just too astronomical for the
capacities we need (500GB to 2 TB)
Even 10K RPM IDE drives seem like would be a problem since they are mostly
small in size.
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