time machine backup size?

How to Set up and Use Time Machine to Backup your Mac 2020

Use Time Machine to back up your Mac Once the backup drive is full, it will make room by deleting the oldest backups. As far as how big of a drive to get, the rule of thumb is 1.5 to 2 times the size of your Mac’s hard drive. For example, if your Mac has 512GB of storage, you’ll want a 1TB drive.

How to reduce the size of your Timemachine backup space

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