From: | Ralph Graulich <maillist(at)shauny(dot)de> |
---|---|
To: | "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com> |
Cc: | Markus Wollny <Markus(dot)Wollny(at)computec(dot)de>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: URGENT: Database keeps crashing - suspect damaged RAM |
Date: | 2002-08-06 19:15:25 |
Message-ID: | Pine.LNX.4.21.0208062112060.25616-100000@shauny.shauny.de |
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Thread: | |
Lists: | pgsql-general |
> several partitions spread about on all the platters you can, as the kernel
> will then interleave swap access across all the drives for maximum
> performance.
[...]
Although this is rather a linux question than a postgresql's one, I want
to add that if you have several swap partitions and want to prefer using
one over another, you should set the "pri"-parameter in /etc/fstab, like
/dev/sdn1 swap pri=1 0 0
/dev/sdf4 swap pri=2 0 0
/dev/sdg4 swap pri=3 0 0
/dev/sdh4 swap pri=3 0 0
/dev/sdi4 swap pri=3 0 0
Refer to "man stab" on your system.
This can dramatically improve performance if the server _has_ to swap, but
preferably should use a otherwise idle disk, before - in extreme
situations - should use any application disk.
Kind regards
... Ralph ...
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