disk usage advice needed

Hello

My data directory is like (pg 7.1 linux 2.4.4)
---
$ ls
PG_VERSION base/ global/ pg_hba.conf pg_ident.conf pg_xlog/ postgresql.conf postmaster.opts
----

With 7.0.3 I remember?? that there are files named according to table
names. With 7.1 I don't know which disk file is associated with
which table. What I would like to do is spread the files between
two ide disks in order to gain some performance. I heard
somewhere that I can symlink some of the files to a different
disk to gain some speed and I was wondering of which of those
files are my tables. What advise would you give if I
can split pg data between two disks.

I think all of the data is in base/ directory and it looks
like this

1/ 18719/ 18836/ 573216/

I have two currently two big tables that are
constantly (1-5 times per second the whole day)
being accessed and always simultaneously and
I wish these two tables to live on two separately.

I just wrote two articles, one on performance and the other on writing
PostgreSQL applications. You can get them at:

http://candle.pha.pa.us/main/writings/pgsql/

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

On Wed, May 02, 2001 at 10:45:09AM -0400, Bruce Momjian wrote:

I wish these two tables to live on two separately.

I just wrote two articles, one on performance and the other on writing
PostgreSQL applications. You can get them at:

http://candle.pha.pa.us/main/writings/pgsql/

Thank you very much. Your article was precisely what
I was looking for. It pointed out to me that I need this
query
select relfilenode,relname from pg_class where relname !~ '^pg';

Regards