Re: Hardware/OS recommendations for large databases ( - Mailing list pgsql-performance

From William Yu
Subject Re: Hardware/OS recommendations for large databases (
Date
Msg-id dlfg7t$1r3u$1@news.hub.org
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In response to Re: Hardware/OS recommendations for large databases (  (Alex Stapleton <alexs@advfn.com>)
List pgsql-performance
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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