Re: databases and RAID ... - Mailing list pgsql-admin

From Ragnar Kjørstad
Subject Re: databases and RAID ...
Date
Msg-id 20020525213839.A24769@vestdata.no
Whole thread Raw
In response to Re: databases and RAID ...  (Peter Eisentraut <peter_e@gmx.net>)
List pgsql-admin
On Sat, May 25, 2002 at 09:29:01PM +0200, Peter Eisentraut wrote:
> 0  Nonredundant
> 1  Mirrored
> 2  Memory-style ECC
> 3  Bit-interleaved parity
> 4  Block-interleaved parity
> 5  Block-interleaved distributed parity
> [Hennessy & Patterson]
>
> There are also other levels.  One poster talked about RAID 10 which
> appears to be a mirrored RAID 5.

No, RAID 10 is RAID 1 over RAID 0 (mirrored stripes). Mirrored RAID 5
would RAID 1 over RAID 5 or RAID 15 for short.


--
Ragnar Kjorstad

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