| From: | Scott Marlowe <smarlowe(at)g2switchworks(dot)com> |
|---|---|
| To: | jose fuenmayor <jafn82(at)gmail(dot)com> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: separate WAL |
| Date: | 2005-12-12 16:12:27 |
| Message-ID: | 1134403947.3587.55.camel@state.g2switchworks.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
On Mon, 2005-12-12 at 10:08, jose fuenmayor wrote:
> How can I install pg_xlog (WAL) in another partition, i mean separate
> the data directory from WAL, i have a single scsi disk with four
> partitions
> /, /boot, /data(data for postgresql), /WAL(pg_xlog), i ve heard that
> by doing this occurs a boost in postgreSQL performance, thanks in
> advance anyone that helps me.
The basic process is this:
initdb your database (I assume you've already done that.)
shut down the database
as the pg user, cd to $PGDATA
cp -Rfp pg_xlog /some/other/vol/pg_xlog/
mv pg_xlog pg_xlog_old
ln -s /some/other/vol/pg_xlog pg_xlog
restart database.
Note that you want the other directory set to the proper permissions
(0700) and ownership (your pg user).
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