From: Joshua D. Drake <jd@commandprompt.com>
To: Vivek Khera <vivek@khera.org>
Cc: Pgsql-Performance ((((E-mail)))) <pgsql-performance@postgresql.org>
Subject: Re: New hardware thoughts
Date: Mon, 23 Oct 2006 14:08:33 -0700
Message-ID: <453D2F51.20704@commandprompt.com> (raw)
In-Reply-To: <1423A912-A830-412D-B1DC-5E8B51DF78F0@khera.org>
References: <0D8823B6-2A2D-40BA-B207-9DA0D50EDFB6@vanilla.net>
<463B9F43-74FC-4DFE-ABC4-357228901174@fastcrypt.com>
<1423A912-A830-412D-B1DC-5E8B51DF78F0@khera.org>
>
> 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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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, vivek@khera.org
Subject: Re: New hardware thoughts
In-Reply-To: <453D2F51.20704@commandprompt.com>
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