


Presumably, you are sending files to the cloud to free up space on your local machine… if there is space available locally on disk, though, OSX will keep these files around in purgeable space which speeds up accessing the files again from your local machine. It is storage on your hard drive that the operating system sets aside for files that it thinks you might access again in the future.Īn example of files that are moved to purgeable space is files that you send to your remote iCloud storage. Purgeable Disk Space is a “feature” of more recent versions of OSX. Link to step by step instructions at the end of this post for reclaiming purgeable space on your mac.

However, if you really need to delete those snapshots (which I don't recommend unless you desperately need that space), there is a way to purge local snapshots from your internal hard drive. That being said, everything doesn't always work correctly, and you may find yourself out of storage space on your internal hard drive, and those snapshot backups won't go away. The program will then continue to replace the old snapshot with a new one until you free up space on your Mac's internal storage, at which point it will go back to saving weekly snapshots as long as space permits.

If you then, say, download some large program and your internal hard drive plummets to below 10% (or less than 5GB of internal storage), Time Machine will delete all local snapshots except the most recent. If everything is working correctly, Time Machine will automatically delete the oldest snapshot backups as soon as your internal hard drive has less than 20% of storage space left. First, let me preface this by saying that you shouldn't worry about those backups and the space they are taking up.
