Re: High cpu usage after many inserts

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От Jordan Tomkinson
Тема Re: High cpu usage after many inserts
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Msg-id 6de2f13b0902241644w1058ce88lbf28b87b74d81cd1@mail.gmail.com
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Ответ на Re: High cpu usage after many inserts  ("Joshua D. Drake" <jd@commandprompt.com>)
Ответы Re: High cpu usage after many inserts  ("Joshua D. Drake" <jd@commandprompt.com>)
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On Wed, Feb 25, 2009 at 9:23 AM, Joshua D. Drake <jd@commandprompt.com> wrote:

RAID5 outside of RAID 0 is the worst possible RAID level to run with a
database. (of the commonly used raid level's that is).

It is very, very slow on random writes which is what databases do.
Switch to RAID 10.

surely being (real) hardware raid with 15k rpm disks this wouldn't be a huge issue unless a large amount of data was being written ?

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