HA backup (to Synology NFS) failed

hi,
I set up NFS share on my Synology NAS following this note: New backup to NAS How-To? - #5 by mituns

I then ran the backup which created several files on the NAS in a temp folder:

Some minutes later I got a pop-up from HA saying that the backup had failed and to check the supervisor log:

23-12-11 11:07:11 INFO (MainThread) [supervisor.homeassistant.module] Backup Home Assistant Core config folder done
23-12-11 11:07:11 INFO (MainThread) [supervisor.backups.manager] Backup 9c5acef3 starting stage folders
23-12-11 11:07:11 INFO (SyncWorker_7) [supervisor.backups.backup] Backing up folder share
23-12-11 11:07:11 INFO (SyncWorker_7) [supervisor.backups.backup] Backup folder share done
23-12-11 11:07:11 INFO (SyncWorker_1) [supervisor.backups.backup] Backing up folder addons/local
23-12-11 11:07:11 INFO (SyncWorker_1) [supervisor.backups.backup] Backup folder addons/local done
23-12-11 11:07:11 INFO (SyncWorker_0) [supervisor.backups.backup] Backing up folder ssl
23-12-11 11:07:11 INFO (SyncWorker_0) [supervisor.backups.backup] Backup folder ssl done
23-12-11 11:07:11 INFO (SyncWorker_5) [supervisor.backups.backup] Backing up folder media
23-12-11 11:07:11 INFO (SyncWorker_5) [supervisor.backups.backup] Backup folder media done
23-12-11 11:07:11 INFO (MainThread) [supervisor.backups.manager] Backup 9c5acef3 starting stage finishing_file
23-12-11 11:07:22 INFO (MainThread) [supervisor.backups.manager] Creating full backup with slug 9c5acef3 completed
23-12-11 11:23:11 INFO (MainThread) [supervisor.homeassistant.api] Updated Home Assistant API token

I can’t see anything in this log.

The backups show this as successful:

I was able to download the 467Mb file from the NAS, anti now shows the archive:

Apart from the pop-up error message I can’t see anything wrong.

Where to continue checking ?

How to validate a backup ?

S.

This setup worked flawlessly for me!

https://markus-haack.com/home-assistant-backup-to-synology-nas/

it started working a while ago. Perhaps when the backups got a lot smaller.

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