TimeMachine on Synology with Tahoe 26.1: Always backups entire disc
I setup a new TimeMachine backup on my Synology ( DSM 6.2.4-25556 Update 8) for my MacBookPro (Tahoe 26.1).
- SSS is 1 TB, assigned quota on TImeMachine-Setting: 2.06 TB
- Synology connected by cable
- Dedicated volume (Drives) for the TimeMachine on the Synology, no other Synology users have access to this drive
- No synology snapshots on this volume enabled
- SMB-Settings on Synology see below
TM started and the initial backup was created after some hours.
But now TimeMachine always copies/backups the entire disc from the Mac, what takes hours.
How can I change that, so incremental backups are done as before?
MacBook Pro 13″, macOS 26.1