From: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
---|---|
To: | Bruno Wolff III <bruno(at)wolff(dot)to>, Holger Zwingmann <holger(dot)zwingmann(at)p3-solutions(dot)de>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Moving a data base between differnt OS |
Date: | 2006-04-27 00:16:32 |
Message-ID: | 20060427001632.GS97354@pervasive.com |
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Lists: | pgsql-general |
On Wed, Apr 26, 2006 at 03:24:19PM -0500, Bruno Wolff III wrote:
> On Wed, Apr 26, 2006 at 21:33:32 +0200,
> Holger Zwingmann <holger(dot)zwingmann(at)p3-solutions(dot)de> wrote:
> > Hi,
> >
> > I just realized that is is possible to do a (backup) copy of a database
> > by copying the "root folder" within the same OS.
>
> There are some other conditions as well. Postgres needs to be shut down when
> you do the copy. The CPU needs to be the same architecture. Postgres should
> be built with the same options (some data representations are controlled by
> config options). Potentially different compilers (used to build Postgres on
> the two systems) could cause problems as well (by changing structure layouts).
And make sure you test thoroughly... there are built-in checks to detect
any incompatabilities, but most people don't try stuff like this so
there could be cases that aren't covered.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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