Dell Perc HX00 RAID controllers: What's inside?

From: Craig James <craig_james(at)emolecules(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Dell Perc HX00 RAID controllers: What's inside?
Date: 2010-05-07 21:11:02
Message-ID: 4BE481E6.9040701@emolecules.com
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Now that it's time to buy a new computer, Dell has changed their RAID models from the Perc6 to Perc H200 and such. Does anyone know what's inside these? I would hope they've stuck with the Megaraid controller...

Also, I can't find any info on Dell's site about how these devices can be configured. I was thinking of ten disks, as

OS: RAID1
WAL: RAID1
Database: RAID10 using 6 disks

But it's not clear to me if these RAID controllers can handle multible arrays, or if you need a separate controller for each array. We're a small shop and I only get to do this every year or so, and everything changes in between purchases!

Thanks,
Craig

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