Time Machine: Setup a size limit for backup volumes

Time Machine will standard use all the available disk space on an external drive or a external server volume. Did you know you can setup a limit how much disk space Time Machine may use. Use the following defaults write Terminal command:

sudo defaults write /Library/Preferences/com.apple.TimeMachine MaxSize -integer XX

Replace XX by the number of megabytes that you want to use, 1 GB = 1024 MB

Example 200GB:

sudo defaults write /Library/Preferences/com.apple.TimeMachine MaxSize -integer 204800

To remove the limit:

sudo defaults delete /Library/Preferences/com.apple.TimeMachine MaxSize

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