Poul-Henning Kamp wrote:
In message <[EMAIL PROTECTED]>, Eric Anderson writes:
Don't mean to be terse here, but I'm talking about the same test done an
two different RAID5 configurations, with different disks, and not just
me - other users in this very thread see the same issue..
Uhm, if you are using RAID5 and your requests are not aligned and
sized after the RAID5 you should *expect* read performance to be poor.
If you your request ends up accessing two different blocks even just
once per stripe, this totally kills performance.
Wouldn't this be a problem for writes then too?
--
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Eric Anderson Sr. Systems Administrator Centaur Technology
A lost ounce of gold may be found, a lost moment of time never.
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