It is essential to ensure that your Mac backup disk remains clean and free from unnecessary files. Doing this can help to prevent the disk from becoming cluttered, which could slow down its performance or lead to errors.
To keep your backup disk in good condition, it is recommended that you regularly delete any unwanted files. This includes unused applications, duplicate photos and documents, and temporary internet files. To do this, open Finder on your Mac device and browse through the folders of your disk until you find those containing unwanted content. You can then select those files for deletion by either clicking the ‘delete’ button or dragging them into the Trash folder. It is also important to empty the Trash bin once all of the unwanted items have been deleted - simply right-click on it and select 'Empty Trash'.
In addition to deleting any unnecessary data, you should also check up on how much space has been taken up by each file type (such as images or videos). This will allow you identify any large ones that are taking up an excessive amount of storage space - these can then be moved onto an external hard drive or cloud storage solution if desired. Finally, make sure that automatic backups are set up correctly on your device in order to back-up key documents without having to manually transfer them later on.