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  3. August 2005

Re: Performance of 2780 controller and 141GB drives



Jones, John (US) wrote:

You've got several factors going:

1. Mirroring is faster at writes than RAID5.  Reads in general won't be
faster but probably won't be slower by a measureable difference.
It was always my understanding that just the opposite was true. Every write involves writing to two disks instead of one, while a read from a mirrored set will read from whichever disk is least busy. A read should be faster by far than a write.

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