[CentOS] SCSI Raid

Joshua Baker-LePain
Thu, 15 Jun 2006 15:09:04 -0000

On Thu, 15 Jun 2006 at 11:00am, Bowie Bailey wrote

> It's pretty well established that 3ware is a good "real"
hardware raid
> card for SATA drives.
>
> So what is a good card for SCSI raid?  My searches have come up with
> Adaptec and LSI as the main players here.  Are the LSI MegaRAID cards
> "real" hardware raid?  Which cards can give good raid 5
performance?

Yes, the MegaRAIDs are "real" hardware RAID (a quick look at the specs
shows the onboard IOP).  I honestly don't know how they perform in RAID5
(I use mine for a cluster head node, just doing RAID1), but I'd make sure
you get the PCI-X (or PCIe) versions rather than the regular PCI ones.
The driver support is quite good, but the monitoring is a little
tougher.

I've been shying away from Adapted for a while now, so I have no
experience with them at all.

--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University