Re: Moving database install to new SAN

From: Andrzej Zawadzki <zawadaa(at)gmail(dot)com>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: Moving database install to new SAN
Date: 2007-09-13 21:14:05
Message-ID: 46E9A81D.90309@gmail.com
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Użytkownik Tino Schwarze napisał:
> On Thu, Sep 13, 2007 at 01:15:34PM -0700, Abu Mushayeed wrote:
>
>> Can someone help me with moving a postgres database install to a new
>> SAN disks. We are getting a new set of faster disk, I would like to
>> find out is there a way, without reinstall to move existing database
>> and data to the new disks with minimal downtime.
>
> If you cannot move online with some SAN tools, you may simply
>
> 1. stop postgres
Not yet...

> 2. copy whole data directory over to new SAN
If database is big, then I think that is much faster to copy running
database
to new SAN.
Then stop postgres and rsync what was changed - but this will be probably
only a few files.

> 3. start postgres with new data directory

Minimal downtime I think.

Best regards

--
Andrzej Zawadzki

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