Re: Hardware/OS recommendations for large databases (

From: William Yu <wyu(at)talisys(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Hardware/OS recommendations for large databases (
Date: 2005-11-16 14:37:48
Message-ID: dlfg7t$1r3u$1@news.hub.org
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Alex Stapleton wrote:
> Your going to have to factor in the increased failure rate in your cost
> measurements, including any downtime or performance degradation whilst
> rebuilding parts of your RAID array. It depends on how long your
> planning for this system to be operational as well of course.

If we go 32xRAID10, rebuild time should be the same as rebuild time in a
4xRAID10 system. Only the hard drive that was replaced needs rebuild --
not the entire array.

And yes, definitely need a bunch of drives lying around as spares.

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