Re: Load times on RAID0 compared to RAID5

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От Andrew Sullivan
Тема Re: Load times on RAID0 compared to RAID5
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Msg-id 20030407143617.GC28340@libertyrms.info
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Ответ на Load times on RAID0 compared to RAID5  (Howard Oblowitz <HowardO@LEWIS-STORES.com>)
Список pgsql-performance
On Mon, Apr 07, 2003 at 04:23:03PM +0200, Howard Oblowitz wrote:
> We find that the load times are about 50% slower when we use a
> RAID5 disk system as compared to when we use RAID0

Well, given that RAID 5 has to do some calculation and RAID 0
doesn't, I shouldn't think this is very surprising.

You should let us know what disk subsystem you have, &c.  It's
impossible to give any advice on the basis of the little that's here.
RAID performance is linked to its configuration and the hardware and
software in use.

A

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