On Fri, Nov 14, 2025 at 3:27 AM KK CHN <[email protected]> wrote:

> Hi,
>
> I am having confusion trying to understand the database size, backupsize
> and repo backup size..
>
> In my DB server I have du output as follows.
>
> /data/edb/as16
> [root@db1 as16]# du -h -d 1
> 5.3G    ./data
> 25G     ./tablespace
> 30G     .
> [root@db1 as16]#
>
> On my Repo Server pgbackest info says ....
>
> full backup: 20251114-121504F
>             timestamp start/stop: 2025-11-14 12:15:04+05:30 / 2025-11-14
> 12:20:58+05:30
>             wal start/stop: 000000010000000500000024 /
> 000000010000000500000024
>             database size: 3GB, database backup size: 3GB
>             repo1: backup size: 431.0MB
>
> Could someone shed some light on    431 MB and database size:3GB, database
> backup size : 3GB  compared to the DB cluster on disk usage output ?
>
> How to correlate the pgbackrest ( info) database size, database backup
> size and repo1 backup size     and actual du output on DB cluster.
>

Do you have the job log at "detail" level?  That lists every file which is
backed up.  Sadly, no compression rates.

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