Re: How to store data on an external drive

your tables are probably not using the new default tablespace

SET default_tablespace = new_tablespace_name
any new tables will be placed into new default tablespace by inserting TABLESPACE clause

can you put the WHOLE database on the external drive?
Martin Gainty
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> Date: Mon, 7 Sep 2009 20:20:52 -0400
> From: chen.1002@gmail.com
> To: pgsql-general@postgresql.org
> Subject: [GENERAL] How to store data on an external drive
>
> Hi there,
>
> As a beginner of PostgreSQL, I installed PostgreSQL 8.3.7 on Ubuntu 9.04
> by using sudo apt-get install.
>
> Now, I want to store PostgreSQL data on an external drive because I work
> both on my office machine and on my home machine a lot. This way, I can
> always bring my external drive to either location and work on data
> stored on the drive.
>
> I tried to use tablespaces as in
> http://www.postgresql.org/docs/8.3/static/manage-ag-tablespaces.html.
> But, it does not seem to work because once I create a tablespace located
> at one folder in the external drive for one machine, I can not create a
> tablespace located at the same folder on the other machine since the
> folder is not empty any more.
>
> Then, on my home machine, I copied everything in
> /var/lib/postgresql/8.3/main to a folder on my external drive (say
> folder /media/disk/psqldata) and edited postgresql.conf to comment out
> line data_directory = '/var/lib/postgresql/8.3/main' and add
> data_directory = '/media/disk/psqldata'. I am hoping that once I edit
> postgresql.conf on my office machine the same way, it would work. But,
> my guess is that this won't work.
>
> Please let me know whether this is right way to do it. Please let me
> know your way of doing it too. Thanks.
>
> Best,
> Jia
>
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