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Re: New hardware thoughts

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Vivek Khera <vivek(at)khera(dot)org>
Cc: "Pgsql-Performance ((((E-mail))))" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: New hardware thoughts
Date: 2006-10-23 21:08:33
Message-ID: 453D2F51.20704@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-performance
> 
> FUD!!!
> 
> They don't randomly change the controllers under the same name.  If you
> order a PERC4e/Si controller you will get the same controller every
> time. 

Actually Vivek this isn't true. Yes the hardware will likely be the
same, but the firmware rev will likely be different and I have seen
firmware make an incredible difference for them.

> This particular controller (found in their PE1850) is incredibly
> fast, sustaining over 80Mb/sec writes to a mirror.  I measured that
> during a DB mirror using slony.

O.k. but my experience shows that mirroring isn't where their problem
is, raid 5 or 10 is :)

Sincerely,

Joshua D. Drake




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