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Re: SATA drives performance

From: Greg Smith <greg(at)2ndquadrant(dot)com>
To: Gaël Le Mignot <gael(at)pilotsystems(dot)net>
Cc: Ognjen Blagojevic <ognjen(at)etf(dot)bg(dot)ac(dot)yu>, pgsql-performance(at)postgresql(dot)org
Subject: Re: SATA drives performance
Date: 2009-12-24 16:42:27
Message-ID: 4B3399F3.2000901@2ndquadrant.com (view raw or flat)
Thread:
Lists: pgsql-performance
Gaël Le Mignot wrote:
> This  solution  costs  only  one  extra disk  (which  is  quite  cheap
> nowadays)

I would wager that the system being used here only has enough space to 
house 3 drives, thus the question, which means that adding a fourth 
drive probably requires buying a whole new server.  Nowadays the drives 
themselves are rarely the limiting factor on how many people use, since 
you can get a stack of them for under $100 each.  Instead the limit for 
small servers is always based on the physical enclosure and then 
potentially the number of available drive ports.

-- 
Greg Smith    2ndQuadrant   Baltimore, MD
PostgreSQL Training, Services and Support
greg(at)2ndQuadrant(dot)com  www.2ndQuadrant.com


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