Re: Installing Postgres

Just dont get into the habbit of moving db files around like too
much....filesystems will spead your files all over the place and your
database will slow down....

Medi

On 8/23/07, Campbell, Lance <lance(at)uiuc(dot)edu> wrote:
>
> Tom,
>
>
> It is nice to know that you can actually move the database by simply
> moving the files. That does assume you shut down the database first.
>
> Thanks,
>
> Lance Campbell
> Project Manager/Software Architect
> Web Services at Public Affairs
> University of Illinois
> 217.333.0382
> http://webservices.uiuc.edu
>
>
> -----Original Message-----
> From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
> Sent: Thursday, August 23, 2007 1:42 PM
> To: Campbell, Lance
> Cc: pgsql-admin(at)postgresql(dot)org
> Subject: Re: [ADMIN] Installing Postgres
>
> "Campbell, Lance" <lance(at)uiuc(dot)edu> writes:
> > The solution, based on emails I have received, is to install
> PostgreSQL
> > into a subdirectory called "data". I then move the contents of "data"
> > back a directory. This way I am able to have the files in the
> directory
> > I want them in. Even though the directory I wanted them in contains a
> > subdirectory. This is how you get around the issue.
>
> NO, NO, NO, NO, NO.
>
> You appear to be impervious to several people telling you this is a
> bad idea, but I will try one more time to explain why. The reason you
> see "lost+found" in that directory is that it is a volume mount point.
> Volume mount point directories should *always* be owned by root, for
> both reliability and security reasons. The setup you are proposing
> would have to have the mount point directory be postgres-owned.
> You will live to regret that if you insist on doing it that way
> (in fact, I'm astonished your sysadmin agreed to it in the first
> place ... he must be pretty new at his job).
>
> Stick with the extra level of directory.
>
> > It appears that
> > the PostgreSQL data directory contents can be moved.
>
> Yeah, they can. The argument here is about exactly where you are
> proposing to move them to. If it were an ordinary directory it'd be
> fine.
>
> regards, tom lane
>
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