Re: Migrate postgres to newer hardware

Hi Renato.

I would follow the ancient method: perform a pg_dump / pg_restore

Yes, you will have to take offline database for a long period.

And yes, it would be a great moment to perform a 8.4 upgrade.
Performance is far superior, restore is far faster...
... and yes, it could give you many problems if you don't perform many
test in order to address all queries without explicit type conversions
before real migration, but I think it's the best moment to deal with a
very convenient upgrade.

We have performed this upgrade last week with a gforge (with only 25GB
database) and having also to upgrade to new tsearch2 and everything is
running smooth.

-----Original Message-----
From: Renato Oliveira <renato(dot)oliveira(at)grant(dot)co(dot)uk>
To: pgsql-admin(at)postgresql(dot)org <pgsql-admin(at)postgresql(dot)org>
Subject: [ADMIN] Migrate postgres to newer hardware
Date: Tue, 30 Mar 2010 12:18:36 +0100

Dear All,

What would be the easiest and fastest way to migrate Postgres 8.2.24 32
BIT to a new server 64 Bit.

The existing server runs on 32 bit architecture and has a database as
big as 160GB.

We initially thought of using PITR, but as one of the PITR requirements
is both machines need to be similar.

This similarity needs to be even in architecture? I think I read
something which says “Yes”.

If we cannot use PITR what would be the best approach, we can’t have
down time I am afraid.

Any ideas or suggestions would be very welcome.

Thank you very much

Best regards

Renato

Renato Oliveira
Systems Administrator
e-mail: renato(dot)oliveira(at)grant(dot)co(dot)uk

Tel: +44 (0)1763 260811
Fax: +44 (0)1763 262410
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