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zach514

macrumors newbie
Original poster
Feb 18, 2021
9
0
(Pictures of the problem)

I'm running Mojave 10.14.6

I have used this drive multiple times as a time machine backup, usually once or twice a week. It is a 500gb 2.5" SSD in an enclosure. I would rotate between using that and my 256gb usb stick which also no longer allows me to backup. My MBP's internal drive is 256gb, and the backup drive is 500gb. It already has numerous recent backups on it, so I wouldn't even be backing up the entire drive, just new files from the last week or two. There are 208gb left on the drive which should be more than enough to back up the 10-20gb(estimate) of new stuff. Every time I click backup, I get the following message.

"Time Machine could not create a local snapshot to back up from because there was insufficient free space on the source volume(s)."

I have ejected the drive, restarted the macbook, reset PRAM and SMC and still have the same problem. I literally used this drive with no issues like 2 weeks ago. Anyone have any ideas as to what could be causing this? Please let me know soon, as I need to get this backed up ASAP. Cheers!
 
My suggestion:
Time to try either CarbonCopyCloner or SuperDuper.
Both are free to download and try for 30 days.
 
(Pictures of the problem)

I'm running Mojave 10.14.6

I have used this drive multiple times as a time machine backup, usually once or twice a week. It is a 500gb 2.5" SSD in an enclosure. I would rotate between using that and my 256gb usb stick which also no longer allows me to backup. My MBP's internal drive is 256gb, and the backup drive is 500gb. It already has numerous recent backups on it, so I wouldn't even be backing up the entire drive, just new files from the last week or two. There are 208gb left on the drive which should be more than enough to back up the 10-20gb(estimate) of new stuff. Every time I click backup, I get the following message.

"Time Machine could not create a local snapshot to back up from because there was insufficient free space on the source volume(s)."

I have ejected the drive, restarted the macbook, reset PRAM and SMC and still have the same problem. I literally used this drive with no issues like 2 weeks ago. Anyone have any ideas as to what could be causing this? Please let me know soon, as I need to get this backed up ASAP. Cheers!
Source, not destination - how much space is free on your internal drive?
 
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