I agree, the LSI megaraid cards work much better then Adaptec cards. The only downside is that megaraid cards do not have good administration tools at all.
Ed Bailey
-----Original Message-----
From: Joshua Baker-LePain [mailto:jlb17@xxxxxxxx]
Sent: Thursday, June 15, 2006 11:09 AM
To: CentOS mailing list
Subject: Re: [CentOS] SCSI Raid
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
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