Re: Discourage splitting pg_wal directory

From: Greg Sabino Mullane <htamfids(at)gmail(dot)com>
To: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
Cc: pgsql-docs <pgsql-docs(at)lists(dot)postgresql(dot)org>
Subject: Re: Discourage splitting pg_wal directory
Date: 2024-03-19 15:04:18
Message-ID: CAKAnmmK1_igr8snfjVOHFiTBz1Nc=FBOsLGvKZNzvNmpZdAwdQ@mail.gmail.com
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On Mon, Mar 18, 2024 at 11:58 AM Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
wrote:

> I think it is still a good idea to put data files and WAL on different file
> systems. Perhaps not so much with the intention of distributing I/O across
> different disks, but to prevent the data files from filling the WAL disk.
>

Cannot say I understand this - if the data files are crowding out the WAL,
surely they are moments away from filling the disk on their own. Disk is
cheap these days, so I'm not a fan of encouraging complexity if not needed.

Cheers,
Greg

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