Re: New hardware thoughts - Mailing list pgsql-performance

From Joshua D. Drake
Subject Re: New hardware thoughts
Date
Msg-id 453D2F51.20704@commandprompt.com
Whole thread Raw
In response to Re: New hardware thoughts  (Vivek Khera <vivek@khera.org>)
Responses Re: New hardware thoughts
List 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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