Re: RAID5 vs Mirrored drives with NT 4.0 server

Well, I know that most NT boxes don't support RAID0+1, which is the ideal. I believe that most do support RAID5, RAID1 (mirroring), and RAID0 (striping). RAID5 carries a significant write penalty (1 logical write = 3 physical writes). You can overcome some of this by setting asynch writes ON at the O/S level, but make sure your RAID5 adapter guarantees the write, even if the power fails.

You can mix the two technologies to get reasonable performance. Maybe something like:

Data, indexes, system, rollback segments - RAID5 Redo logs, archive logs, TEMP tablespace - RAID0

Good luck,
Dave

bllag_at_aol.com wrote in message <6fon4c$orj$1_at_nnrp1.dejanews.com>...
>I am seeking information regarding RAID 5 vs Mirrored drives on a server
>running NT 4.0 and Oracle 7.3. I understand the economics, but I have
>customers who continue to opt for cheaper rather than mirror. My company's
>particular application is write intensive. Thank you for any help.
>
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Received on Thu Apr 02 1998 - 00:00:00 CST