I got this message when I clicked on the red "i" info icon, after TM failed to carry out a scheduled backup.
"The backup disk needs 2.02 TB for the backup but only 410.30 GB are available. Select a larger backup disk or make the backup smaller by excluding files."
I have used about 340GB of my 1 TB internal drive so far. The backup drive is 2TB.
iMac, OS X El Capitan (10.11.6), 2.7GHz 27 inch iMac 20GB Ram
Yeah fun nonsense that TM comes up with.
How much actual space shows on the TC from the disk tab in airport utility?
I would use a few of Pondini's tools.. It is a bit dated but still useful.
1. Verify your Mac OS disk and the backup.
A5 here. http://pondini.org/TM/Troubleshooting.html
2. Reset TM
A4 in same place.
In the end the fix is often to wipe the TC disk and start over. TM can be a bit dodgy especially if you upgrade installed a couple of OS without a clean TM backup.
What's TC?
And A5 and A4?
TC is Time Capsule.. this discussion area is Time Capsule.. so most people are used to seeing TC for time capsule.
TM is Time Machine .. which is NOT this area.. it is part of your OS. If you use external hard disk it really should go under El Capitan or whatever OS you run. Although we end up answering more Time Machine questions than Time Capsule.
Do you have a Time Capsule.. or are you backing up to an External drive.
Your only statement of information is you have 2TB which is standard size Gen4 and Gen5 TC.
A4 and A5 I gave with a reference which apparently you did not click.. so here is the references directly.. please click the link.
Time Machine error
