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software RAID-100

Hi there. I have a new storage subsystem with two 15-drive SAS
enclosures, and I'm wondering how to set it up for my databases (a
150GB data warehouse and a 50GB plain old database, among others). My
initial idea was 1 hot spare per enclosure and a 28-drive RAID-10 (SAME
configuration), but yesterday I was dismayed to find that RAID-10 only
supports up to 16 drives (does anyone know the reason for this, by the
way?). So I'm considering a single RAID-50 (SAME), though I doubt this
will be fast enough for writes (e.g. index rebuilds), two RAID-10's
(with filegroup balancing, I guess), and RAID-100 (SAME) using Windows
(Server 2003 x64) to stripe across two 14-drive RAID-10's. Has anyone
done this? I'm planning on benchmarking all these different
configurations before moving the databases, and of course I'm always
open to general tips and advice.

Thanks,
Seth

Sep 26 '06 #1
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