while it takes a minimum of 6 disks, we've had great luck with RAID 50. Two separate RAID 5 arrays (fast read, moderate writes) that are then placed into a RAID 0 (fast read, fast write). you lose 2 drives worth of space, but lord it's fast and the data is mirrored. Not sure if you can do the whole thing in software. I use two 3Ware 9650SE cards to do the RAID 5 and I do RAID 0 in software.
Jason www.cyborgworkshop.org
John J. Lee wrote:
I am currently running 7 raid10 data servers. I can say read speed increases but I doubt the write speed comparing to non raid setup. The main advantage of the raid is redundancy but not the performance. If you want to boost the disk performance, go for the faster drive with more than 10,000rpm spinning speed.
-john
On Thu, Apr 10, 2008 at 8:18 PM, Miguel Medalha miguelmedalha@sapo.pt wrote:
Have you tried RAID 10? It combines the security of RAID 1 with the speed of RAID 0. dmraid supports this RAID type.
I was wonder what experiences there are out there with using RAID-X for performance increases. I do use RAID-1 (2 disks) but am interested in attemtps to gain higher R/W performance. Do the RAID-5's etc give
noticeable performace increases?
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