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Posted by 1492a2001 on 05/17/06 17:49
Hank Arnold wrote:
> My opinion is that this only highlights the fact that *general*
> guidelines will not always apply.
>
> What we have here is a couple of reports that RAID 10 is slower that
> RAID 5 for the database in question. The vast majority of expert reports
> that I have read (including the vendor of our medical database) is that
> *IN GENERAL* RAID 10 is faster than RAID 5 for databases. Nowhere have I
> ever seen the statement that it is *ALWAYS* faster.
that's a nonsense. RAID10 is ALWAYS as fast or faster than RAID5. It's
a physics questions (the number movements of the disk heads necessary
to read or write an amount of data).
defective implementations are another history.
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