Dividing up a single 250GB RAID10 server for postgres

From: Rory Campbell-Lange <rory(at)campbell-lange(dot)net>
To: pgsql-performance(at)postgresql(dot)org
Subject: Dividing up a single 250GB RAID10 server for postgres
Date: 2005-12-04 23:49:34
Message-ID: 20051204234934.GA12887@campbell-lange.net
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

Hi. We have a server provided for a test of a web application with the
following specifications:

1 Dual core 1.8GHz Opteron chip
6 GB RAM
approx 250GB of RAID10 storage (LSI card + BBU, 4 x 15000 RPM,16MB
Cache SCSI disks)

The database itself is very unlikely to use up more than 50GB of storage
-- however we are going to be storing pictures and movies etc etc on the
server.

I understand that it is better to run pg_xlog on a separate spindle but
we don't have that option available at present.

Normally I use ext3. I wondered if I should make my normal partitions
and then make a +/- 200GB LVM VG and then slice that initially into a
100GB ext3 data directory and a 50GB xfs postgres data area, giving
100GB to use between these as they grow. I haven't used LVM with xfs
before, however.

Advice gratefully received.
Rory

Browse pgsql-performance by date

  From Date Subject
Next Message Howard Oblowitz 2005-12-05 07:42:43 Query Fails with error calloc - Cannot alocate memory
Previous Message Klint Gore 2005-12-04 22:24:51 Re: Faster db architecture for a twisted table.