Scott, The server is a Dell PowerEdge 2900 II with the standard Perc 6/I SAS controller with 256 MB cache. Lance Campbell Project Manager/Software Architect Web Services at Public Affairs University of Illinois 217.333.0382 http://webservices.uiuc.edu -----Original Message----- From: Scott Marlowe [mailto:scott.marlowe@xxxxxxxxx] Sent: Monday, May 05, 2008 10:06 AM To: Campbell, Lance Cc: pgsql-performance@xxxxxxxxxxxxxx Subject: Re: [PERFORM] Backup causing poor performance - suggestions On Mon, May 5, 2008 at 8:59 AM, Campbell, Lance <lance@xxxxxxxx> wrote: > > PostgreSQL: 8.2.4 You should update to 8.2.7 as a matter of periodic maintenance. It's a very short and easy update. > We currently backup all of our database tables per schema using pg_dump > every half hour. We have been noticing that the database performance has > been very poor during the backup process. How can I improve the > performance? > > > > Server Specs: > > Dedicated DB server > > Database takes up 8.0 Gig of disk space > > 2 Xeon 5160 dual cores 3.0 > > 16 G of memory > > Two disks in raid 1 are used for the OS, database and backups. SAS 10,000 > RPM drives. > > OS: Linux AS 4.x 64 bit So, what kind of RAID controller are you using? And can you add more drives and / or battery backed cache to it?
