Re: Backup causing poor performance - suggestions

On Mon, May 5, 2008 at 8:59 AM, Campbell, Lance <lance@uiuc.edu> 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?