Re: megaraid/PERC

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On Wednesday, November 30, 2011 06:40:44 PM Ross Walker wrote:
> I have heard of people setting their PERCs in pass-through mode and doing software RAID, or setting the drives up as a bunch of single disk RAID0 drives and doing software RAID, so I wouldn't rule it out.

FWIW, I've done this in testing, and for a two-socket dual-core Dell PE 2850 we have here, the Linux software RAID was substantially faster than the PERC (U320 SCSI) built-in RAID.  Speed was checked with bonnie++ while the box was normally loaded.

In both cases, CentOS 5 was the OS installed.

YMMV.
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