Big Sur, Time Machine, SMB, umount, and S. Apple Community
I have Time Machine backing up to a Synology NAS over SMB. Under Catalina this worked great from two laptops (16" mbp and a 12" ). After upgrading to Big Sur, it works fine on the 12" MacBook. However, on the 16" MacBook Pro, whenever an hourly backup is done, Time Machine tries to unmount the SMB drive using umount, and it seems to hang.