Horton

Re: Hardware performance

Hannu Krosing <hannu@tm.ee>

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From: Hannu Krosing <hannu@tm.ee>
To: Joe Conway <mail@joeconway.com>
Cc: pgsql-performance@postgresql.org
Date: 2003-07-17T07:56:49Z
Lists: pgsql-performance 
Joe Conway kirjutas N, 17.07.2003 kell 07:52:
> To an extent it depends on how big the drives are and how large you 
> expect the database to get. For maximal performance you want RAID 1+0 
> for data and WAL; and you want OS, data, and WAL each on their own 
> drives. So with 5 drives one possible configuration is:
> 
> 1 drive OS: OS on it's own drive makes it easy to upgrade, or restore 
> the OS from CD if needed
> 2 drives, RAID 1+0: WAL
> 2 drives, RAID 1+0: data

How do you do RAID 1+0 with just two drives ?

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Hannu