Re: initdb --data-checksums

From: Paul Förster <paul(dot)foerster(at)gmail(dot)com>
To: Matt Zagrabelny <mzagrabe(at)d(dot)umn(dot)edu>
Cc: "pgsql-general(at)postgresql(dot)org >> PG-General Mailing List" <pgsql-general(at)postgresql(dot)org>
Subject: Re: initdb --data-checksums
Date: 2020-11-09 17:03:43
Message-ID: 7DEDB2BC-2948-4046-AC12-1EB9A47EC299@gmail.com
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Hi Matt,

> On 09. Nov, 2020, at 18:00, Matt Zagrabelny <mzagrabe(at)d(dot)umn(dot)edu> wrote:
>
> Hello,
>
> I see the --data-checksums option for initdb. Is it possible to use --data-checksums after the cluster has been initialized? I'm guessing "not", but thought I'd ask.
>
> I'm running v12 on Debian.
>
> Thanks for any help!

indeed, it is. Have a look at:

https://www.postgresql.org/docs/12/app-pgchecksums.html

Make sure the database is cleanly shut down before doing it.

Cheers,
Paul

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