Synology Hyper Backup target is full: now what?
Classic. Retention was too generous, or data grew and nobody noticed. Do not just delete; think first.
Try this first
- 1Open Hyper Backup and look at the retention settings of that job. How many versions does it keep? Smart Recycle or fixed count?
- 2Do not manually delete old .hbk files on the target; the index gets corrupt and you start over.
- 3Lower retention via the UI ('number of versions to keep') and run the matching 'cleanup' task. Hyper Backup then trims safely.
- 4For next time: set alerting at '80% full' on the target itself. Synology DSM can email that via the notification settings.
When to bring us in
Unsure about lowering retention? Talk first; too short and you lose the safety net for longer ransomware incidents. We calculate what is safe.
See also
- We have backups but we do not know if they workA backup that cannot be restored is not a backup. Testing matters as much as taking the backup.
- Suspected ransomware: what to do RIGHT NOWThe first 30 minutes are critical. One wrong move spreads the damage. Read before acting.
- Someone accidentally deleted an important folderUsually fine to recover. The trick: do not save anything new on that drive until you know how.
None of the above fits?
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