Re: [ADMIN] H/W RAID 5 on slower disks versus no raid on

pgsql-performance-owner@postgresql.org wrote:
> Objet : Re: [PERFORM] [ADMIN] H/W RAID 5 on slower disks versus no
> raid on
> 
> 
> Mario Weilguni <mweilguni@sime.com> writes:
>> If 4 drives are an option, I suggest 2 x RAID1, one for data, and
>> one for WAL and temporary DB space (pg_temp). 
> 
> Ideally there should be *nothing* on the WAL drive except WAL; you
> don't ever want that disk head seeking away from the WAL.  Put the
> temp files on the data disk.
> 
> 			regards, tom lane
> 
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which temp files ?