Re: Table Partitioning in Postgres:

Shridhar Daithankar <shridhar_daithankar@persistent.co.in>

From: "Shridhar Daithankar<shridhar_daithankar@persistent.co.in>" <shridhar_daithankar@persistent.co.in>
To: "PGSQL General (E-mail)" <pgsql-general@postgresql.org>
Date: 2003-02-18T05:34:03Z
Lists: pgsql-general
On Tuesday 18 Feb 2003 2:12 am, you wrote:
> 3.	Please suggest us some tips for setting up a big database to acheive
> maximum performance ?

well, typically postgresql tries to do things that nobody else in the supply 
chain will do. If an OS would take care of mirroring of drives, then 
postgresql won't do it for example.

Large tables/database are limited by IO performance. So you need to have 
maximum IO throughput available for postgresql to perform best.

I suggest you look at RAID configurations. SCSI if better. If not, then even 
software RAID on some OS's like linux should be a good enough option. Of 
course, put two disk on two channels but that's about it.

Basically, postgresql won't do anything out of box to support disk 
partitioning because that's is an OS's job. symlinking is a poor solution 
because say if you recreate an index, postgresql will drop the symlink and 
recreate a file instead.

HTH

 Shridhar