On Dec 1, 2011, at 7:52 AM, Lamar Owen wrote: > 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. ---- I think the actual controller might make a difference and also details such as whether/how much write back cache was available and also, which RAID level would likely be significant too. Almost guessing that you were talking about a PERC 3/Di.
Craig _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
