Re: Multiple disks: RAID 5 or PG Cluster - Mailing list pgsql-performance

From PFC
Subject Re: Multiple disks: RAID 5 or PG Cluster
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Msg-id op.sskpeoazth1vuj@localhost
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In response to Re: Multiple disks: RAID 5 or PG Cluster  (mudfoot@rawbw.com)
Responses Re: Multiple disks: RAID 5 or PG Cluster
List pgsql-performance

> I do not know what clustering would do for you.  But striping will
> provide a
> high level of assurance that each of your hard drives will process
> equivalent
> amounts of IO operations.

    I don't know what I'm talking about, but wouldn't mirorring be faster
than striping for random reads like you often get on a database ? (ie. the
reads can be dispatched to any disk) ? (or course, not for writes, but if
you won't use fsync, random writes should be reduced no ?)



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