Re: how to add a new data partition

Hi Philip,

Thanks for the reply. Our DB grows very fast. Hence I don't want to
move the exisisting data dir. If I move my data file to the new partition,
I will face the same issue in another month instead of week.

My requirement is to keep the old data directory along with the new
partition.

In Oracle, we can tell the alter database add data file '/new partition'
so the the new partition will take into effect along with the old one.

Is there a similar way in postgres?

Regards
skarthi

>From: "Phillip Smith" <phillip(dot)smith(at)weatherbeeta(dot)com(dot)au>
>To: "'Karthikeyan Sundaram'"
><skarthi98(at)hotmail(dot)com>,<pgsql-admin(at)postgresql(dot)org>
>Subject: Re: [ADMIN] how to add a new data partition
>Date: Wed, 7 Feb 2007 08:52:06 +1100
>
>One option if you can have the DB offline for a little while:
>
>1) Shutdown Postgres
>2) Move your current data directory to the new partition
>3) Update your PGDATA variable, and any scripts that reference it to
>reflect
>the new data path. You might also like to symlink the old data dir to the
>new one.
>4) Restart Postgres. pg_ctl -D /new/path/to/data start
>
>That's worked for me several time before.
>
>Cheers,
>-p
>
>-----Original Message-----
>From: pgsql-admin-owner(at)postgresql(dot)org
>[mailto:pgsql-admin-owner(at)postgresql(dot)org] On Behalf Of Karthikeyan Sundaram
>Sent: Wednesday, 7 February 2007 08:46
>To: pgsql-admin(at)postgresql(dot)org
>Subject: [ADMIN] how to add a new data partition
>
>Hi all,
>
> We are using postgres 8.0.1 on our production and 8.2 on our
>development.
>
>The linuix partition is getting full where the database resides. In few
>weeks our partition will ran out of space so the database will also run out
>of space. We have added another HDD of 300GB. Now my question is, how will
>I point the database to the new partition along with the old one. Do I need
>to create a symbolic link to the exitisting DB?
>
> Adding a new tablespace doesn't solve the issue as there are many
>tables
>in the old tablespace. Is there a way to extend the tablespace to the new
>partition like in Oracle.
>
> Did anybody faced this problem and how did you resolve. Please share
>your
>
>thoughts.
>
>
>Regards
>skarthi
>
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