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Message-ID: <cone.1267624316.4148.32557.1000@shelca>
From: Francisco Reyes <lists@stringsutils.com>
To: Yeb Havinga <yebhavinga@gmail.com>
Cc: Pgsql performance <pgsql-performance@postgresql.org>
Subject: Re: 10K vs 15k rpm for analytics
Date: Wed, 03 Mar 2010 08:51:56 -0500
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Yeb Havinga writes:

> controllers. Also, I am not sure if it is wise to put the WAL on the 
> same logical disk as the indexes,

If I only have two controllers would it then be better to put WAL on the 
first along with all the data and the indexes on the external? Specially 
since the external enclosure will have 15K rpm vs 10K rpm in the internal.


> thread (unwise to mix random and sequential io and also the wal has 
> demands when it comes to write cache).

Thanks for pointing that out.
With any luck I will actually be able to do some tests for the new hardware. 
The curernt one I literaly did a few hours stress test and had to put in 
production right away.