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Well, This has not been the case with 64-bit OpenSuSE. A fresh re-install of the OS required I recreate the database from backup. Postgres would NOT recognize or salvage the directory on a TB drive containing tablespace. On Tuesday 09 June 2009 04:50:07 am Tino Schwarze wrote: > Hi Roland, > > On Mon, Jun 08, 2009 at 12:23:06PM -0500, Roland Hughes wrote: > > I have had a question for some time and cannot seem to find an answer. > > > > Is there a way to add pre-existing tablespace to a fresh Postgres > > install? > > > > Typically I create tablespace on some TB drives and place all databases > > there. The default OpenSuSE 64-bit and Ubuntu 64-bit installations have > > Postgres looking at the root drive. I don't have a problem with that, > > but do want the ability to add tablespace (including all of its stored > > data) which was already in existence prior to the re-install/new-install. > > > > I can do this with commercial products like RDB on OpenVMS. > > > > I'm trying to avoid the pain of unload/recreate/reload when upgrading OS > > versions. In many cases, they don't even change the Postgres version. > > Unloading multiple TB of binary data to text then reloading is a major > > tactical problem. > > We usually do not use the prebuilt PostgreSQL binaries from any > distributions, we just compile our own and install them in > /opt/postgresql-$version/, then we add an init-script (easy) and a file > in /etc/profile.d set PATH etc. That works reasonably well and we've got > not problems with upgrading the OS since it wont touch our files at all. > Then you're free to initdb -D /wherever/you/want and have your whole > tablespace somewhere else. > > It should also be easy to point the default tablespace of the standard > installations to another place. > > And, BTW, if you're just upgrading within major version (e.g. 8.3.x -> > 8.3.y) you shouldn't need to do anything. The OS upgrade should not > touch your existing table space in any way and the "fresh install" will > happily use it as it is. > > HTH, > > Tino. > > -- > "What we nourish flourishes." - "Was wir nähren erblüht." > > www.lichtkreis-chemnitz.de > www.craniosacralzentrum.de -- Roland Hughes President Logikal Solutions (815)-949-1593 voice (630)-205-1593 cell |
