How can it take over 5 hours to back up 79 GB of files to a network share? That’s an average transfer rate of 4 MB/s, probably slower than your Internet connection.
SMB
Provided it doesn’t have to back up large folders containing many small files, Time Machine backing up to APFS on a network share works well.
How to connect your M1 Mac in Target Disk mode, avoiding an endless restart loop, and how fast to expect it to perform. Plus more on benchmarks.
Can you still share files using the AFP protocol, or must you contend with SMB and its bugs? And what about shared storage for Time Machine backups?
Additional info about how you can install and upgrade to High Sierra, its new Content Caching feature, how it changes firmware updates, changes to NVRAM, and more.
One out of my three Macs won’t share files with the others. Why not?
What are ‘named streams’, and how to they fit in to Samba sharing?
The Eclectic Light Company 