You can create a new user specifically for the Time Machine backup with a different password and everything, but it’s not required. The defaults are pretty good, so you’re safe just going ahead and hitting the “OK” button. Next, you’ll set user permissions for the shared folder. On the next screen, hit the “Apply” button to confirm the settings. You can enter whatever you want, but I find this to be the sweet spot that includes a longer history of backups without getting too crazy on storage space.
if your Mac has 250 GB of storage space, make the storage size 750 GB). This places a maximum capacity on the shared folder so that Time Machine doesn’t continue to create more and more backups until it fills up the entire NAS.īelow that, enter a storage size that’s about three times the size of your Mac’s storage capacity (e.g. Turn on the “Enable Shared Folder Quota” option. If you choose to do this, it’s better for your Synology NAS to handle it, rather than macOS, as that will free up resources on your computer.
On the next screen, you can enable encryption for your Time Machine backups if you want.
