Since Catalina, MacOS allows Time Machine backups over SMB. Although MyCloud is running an old version of Samba (4.3.11), with some tweaking to the /etc/samba/smb-global.conf and /etc/samba/tm_config.conf, you can do TM backups over SMB instead of AFP. You can see my exploration of Mac issues here: SOLVED: Tweaking Samba/SMB2 for Mac & Androids
Only perform these tweaks if you are comfortable to ssh into your MyCloud and make changes to configuration files!!! Backup any file before you modify it.
You don’t need all of the additional parameters I originally included.
Here are the essentials ones to add:
to /etc/samba/smb-global.conf add under [global]:
min protocol = SMB2
ea support = yes
vfs objects = catia fruit streams_xattr
to /etc/samba/tm_config.conf add under [TimeMachineBackup]:
strict sync = yes
vfs object = catia fruit streams_xattr
fruit:time machine = yes
Optional ones for performance to add to /etc/samba/smb-global.conf under [global]:
fruit:copyfile= yes
smb2 leases = yes
kernel share modes = no
posix locking = no
use sendfile = yes
aio read size = 1
aio write size = 1
smb2 max read = 8388608
smb2 max write = 8388608
smb2 max trans = 8388608
Restart samba to make changes effective:
/etc/init.d/samba restart
