Hi Martin,
Thanks for reply. However, your answer confuses me.
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
This is what I did:
I created tablespace on my home machine by using CREATE TABLESPACE
psqldata LOCATION '/media/disk/psqldata'; The mounted folder
'/media/disk/psqldata' is on my external drive. Yes, it works fine on my
home machine when I use SET default_tablespace = psqldata.
The problem came when I went to work on my office machine with the same
external drive. I tried to create a tablespace by using the same clause,
CREATE TABLESPACE psqldata LOCATION '/media/disk/psqldata'; But, I got
an error message saying that I can create this table space because the
folder is not empty. The PostgreSQL manual dose say "The location must
be an existing, empty directory" as in
http://www.postgresql.org/docs/8.3/static/manage-ag-tablespaces.html.
There is already stuff in that folder after I created the tablespace on
my home machine.
So, I did not even create a tablespace for that folder on my office
machine yet. I don't see how set SET default_tablespace =
new_tablespace_name can solve this problem. Maybe, there was a
misunderstanding between us in your last e-mail.
> Can you put the WHOLE database on the external drive?
This is my question to you guys.
I have not succeeded putting whole database on my external drive yet
with PostgreSQL. Yet, it seems to be easy to do the same with MySQL by
editing my.cnf file. Thanks.
Best,
Jia
Martin Gainty wrote:
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
______________________________________________
Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité
Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene
Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede
unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig.
Diese Nachricht dient lediglich dem Austausch von Informationen und
entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten
Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den
Inhalt uebernehmen.
Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni.
> Date: Mon, 7 Sep 2009 20:20:52 -0400
> From: chen.1002@xxxxxxxxx
> To: pgsql-general@xxxxxxxxxxxxxx
> Subject: 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
>
> --
> Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-general
------------------------------------------------------------------------
With Windows Live, you can organize, edit, and share your photos.
Click here. <http://www.windowslive.com/Desktop/PhotoGallery>
--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
