Re: databases and RAID ...

From: "Sander Steffann" <sander(at)steffann(dot)nl>
To: "pgsql-admin" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: databases and RAID ...
Date: 2002-05-26 18:22:33
Message-ID: 001001c204e2$4ecf3e80$64c8a8c0@balefire10ww
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> On Sun, May 26, 2002 at 08:00:50AM -0700, Bill Cunningham wrote:
> > No Raid 10 is Raid 1 + 0 its strong points are faster writes but slower
> > reads.
>
> RAID 10 reads will actually be faster than RAID 5, but it will require
> more disks. (2n instead of n+1).

There also seems to be a combination of RAID 5 + 0, called RAID 50. It
performs faster than RAID 5, and slower than RAID 10. Disk usage is also
between those two (n+2).

Sander.

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