Re: Postgres Clustering Options

From: John R Pierce <pierce(at)hogranch(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Postgres Clustering Options
Date: 2009-11-11 17:51:59
Message-ID: 4AFAF9BF.9000603@hogranch.com
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Ben Chobot wrote:
> Of course, you still have the single point of failure in the SAN.

a proper SAN has two switches, each host connected to it has two HBA
interfaces, there are two redundant storage controllers with mirrored
cache, dual paths from each controller to all the storage, and redundant
power supplies throughout. there is no single point of failure
there. of course, none of this is cheap.

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