Re: help tuning queries on large database

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Peter,

On 1/9/06 9:23 AM, "peter royal" <peter.royal@xxxxxxxxx> wrote:

> This is a 2-disk RAID0

Your 2-disk results look fine - what about your 8-disk results?

Given that you want to run in production with RAID10, the most you should
expect is 2x the 2-disk results using all 8 of your disks.  If you want the
best rate for production while preserving data integrity, I recommend
running your Areca in RAID5, in which case you should expect 3.5x your
2-disk results (7 drives).  You can assume you'll get that if you use XFS +
readahead.  OTOH - I'd like to see your test results anyway :-)

- Luke




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