Re: improving write performance for logging

On Wed, Jan 04, 2006 at 11:00:38AM -0500, Ian Westmacott wrote:
> The WAL is a 2-spindle (SATA) RAID0 with its own controller (ext3).
> The tables are on a 10-spindle (SCSI) RAID50 with dual U320
> controllers (XFS).  This is overkill for writing and querying the data,
> but we need to constantly ANALYZE and VACUUM in the
> background without interrupting the inserts (the app is 24x7).  The
> databases are 4TB, so these operations can be lengthy.

How come you're using RAID50 instead of just RAID0? Or was WAL being on
RAID0 a typo?
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461