Re: setting up raid10 with more than 4 drives

From: "Luke Lonergan" <llonergan(at)greenplum(dot)com>
To: "Stephen Frost" <sfrost(at)snowman(dot)net>
Cc: "Rajesh Kumar Mallah" <mallah(dot)rajesh(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: setting up raid10 with more than 4 drives
Date: 2007-05-30 03:49:56
Message-ID: C2824274.31AF7%llonergan@greenplum.com
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Stephen,

On 5/29/07 8:31 PM, "Stephen Frost" <sfrost(at)snowman(dot)net> wrote:

> It's just more copies of the same data if it's really a RAID1, for the
> extra, extra paranoid. Basically, in the example above, I'd read it as
> "D1, D2, D5 have identical data on them".

In that case, I'd say it's a waste of disk to add 1+2 redundancy to the
mirrors.

- Luke

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