Re: Recommended stripe depth for Oracle on a Raid?

Rick Denoire wrote:

> <snipped>
>
>I have been told by many specialists that the assumption, that Raid 5
>is bad for writing, belongs to the past. Parity calculation and write
>buffering capabilites are much faster/better than several years ago.
>
>Rick Denoire
>
>

I would dispute that based on benchmarking we performed just this year with the latest
hardware and configurations.

If your specialists can point to numbers to back up their assertions I'd be interested in
reviewing them. Until then it seems highly unlikely RAID 5 will ever match the performance
of 1+0 or 0+1. I think these guys were just making it up as they went along. But I am open
to anyone that has numbers supporting the proposition.

-- 
Daniel Morgan
http://www.outreach.washington.edu/ext/certificates/oad/oad_crs.asp
http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp
damorgan_at_x.washington.edu
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