I have two Home Assistant servers (vers at end). Both backup to their local stage and also to an NFS Share. One has stopped working, leaving this info in the Supervisor Log (I pressed the backup button at 07:13:00):
e[32m2026-06-11 07:08:02.839 INFO (MainThread) [supervisor.resolution.check] System checks completee[0m
e[32m2026-06-11 07:08:02.839 INFO (MainThread) [supervisor.resolution.evaluate] Starting system evaluation with state runninge[0m
e[32m2026-06-11 07:08:02.853 INFO (MainThread) [supervisor.resolution.evaluate] System evaluation completee[0m
e[32m2026-06-11 07:08:02.853 INFO (MainThread) [supervisor.resolution.fixup] Starting system autofix at state runninge[0m
e[32m2026-06-11 07:08:02.853 INFO (MainThread) [supervisor.resolution.fixup] System autofix completee[0m
e[32m2026-06-11 07:09:58.689 INFO (MainThread) [supervisor.auth] Auth request from 'core_mosquitto' for 'mqttuser'e[0m
e[32m2026-06-11 07:09:58.988 INFO (MainThread) [supervisor.auth] Successful login for 'mqttuser'e[0m
e[32m2026-06-11 07:13:02.628 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage addon_repositoriese[0m
e[32m2026-06-11 07:13:02.628 INFO (MainThread) [supervisor.backups.manager] Creating new partial backup with slug 28c56a6ae[0m
e[32m2026-06-11 07:13:02.640 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage home_assistante[0m
e[32m2026-06-11 07:13:02.663 INFO (MainThread) [supervisor.homeassistant.module] Backing up Home Assistant Core config foldere[0m
e[32m2026-06-11 07:13:10.874 INFO (MainThread) [supervisor.homeassistant.module] Backup Home Assistant Core config folder donee[0m
e[32m2026-06-11 07:13:10.875 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage addonse[0m
e[32m2026-06-11 07:13:10.880 INFO (MainThread) [supervisor.apps.app] Building backup for app core_matter_servere[0m
e[32m2026-06-11 07:13:10.935 INFO (MainThread) [supervisor.apps.app] Finish backup for app core_matter_servere[0m
e[32m2026-06-11 07:13:10.940 INFO (MainThread) [supervisor.apps.app] Building backup for app core_sshe[0m
e[32m2026-06-11 07:13:10.954 INFO (MainThread) [supervisor.apps.app] Finish backup for app core_sshe[0m
e[32m2026-06-11 07:13:10.959 INFO (MainThread) [supervisor.apps.app] Building backup for app 9cf1ea8f_mqtt_explorere[0m
e[32m2026-06-11 07:13:10.971 INFO (MainThread) [supervisor.apps.app] Finish backup for app 9cf1ea8f_mqtt_explorere[0m
e[32m2026-06-11 07:13:10.976 INFO (MainThread) [supervisor.apps.app] Building backup for app core_configuratore[0m
e[32m2026-06-11 07:13:10.988 INFO (MainThread) [supervisor.apps.app] Finish backup for app core_configuratore[0m
e[32m2026-06-11 07:13:10.993 INFO (MainThread) [supervisor.apps.app] Building backup for app core_mosquittoe[0m
e[32m2026-06-11 07:13:11.004 INFO (MainThread) [supervisor.apps.app] Finish backup for app core_mosquittoe[0m
e[32m2026-06-11 07:13:11.005 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage folderse[0m
e[32m2026-06-11 07:13:11.006 INFO (SyncWorker_4) [supervisor.backups.backup] Backing up folder ssle[0m
e[32m2026-06-11 07:13:11.008 INFO (SyncWorker_4) [supervisor.backups.backup] Backup folder ssl donee[0m
e[32m2026-06-11 07:13:11.009 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage supervisor_confige[0m
e[32m2026-06-11 07:13:11.009 INFO (SyncWorker_2) [supervisor.backups.backup] Backing up supervisor configuratione[0m
e[32m2026-06-11 07:13:11.012 INFO (SyncWorker_2) [supervisor.backups.backup] Backup supervisor configuration donee[0m
e[32m2026-06-11 07:13:11.012 INFO (MainThread) [supervisor.backups.manager] Backup 28c56a6a starting stage finishing_filee[0m
e[31m2026-06-11 07:13:42.451 ERROR (MainThread) [supervisor.backups.manager] Backup 28c56a6a error
Traceback (most recent call last):
File "/usr/src/supervisor/supervisor/backups/manager.py", line 519, in _do_backup
async with backup.create():
~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/contextlib.py", line 221, in __aexit__
await anext(self.gen)
File "/usr/src/supervisor/supervisor/backups/backup.py", line 520, in create
size_bytes = await self.sys_run_in_executor(_close_outer_tarfile)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 86, in run
result = ctx.run(self.task)
File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 73, in run
return fn(*args, **kwargs)
File "/usr/src/supervisor/supervisor/backups/backup.py", line 504, in _close_outer_tarfile
outer_secure_tarfile.close()
~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/securetar/__init__.py", line 1385, in close
self._tar.close()
~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/tarfile.py", line 2134, in close
self.fileobj.close()
~~~~~~~~~~~~~~~~~~^^
TimeoutError: [Errno 110] Operation timed oute[0m
By a process of trial & elimination, the task that breaks the backup is the History Switch.
Turn it Off and the backup compleates. Turn it On, start the Backup and watch the share folder (in another PC) and I see the file size increase up to about its full (~200MB) size before it cleans up and reports the error. The working HA backup file is over twice this size and there is plenty of room on the share.
Any pointers on what I can check next?
Regards, Martin
- Installation method Home Assistant OS
- Core 2026.6.2
- Supervisor 2026.05.1
- Operating System 17.3
- Frontend 20260527.5
Local Backup works - but Backup on Synology NAS (suggested 923MB) fails with a timeout error 110.