Time Machine not deleting oldest backups when the disk is full

Unfortunately, when this happens, Time Machine cannot erase enough space to create room for the new backup. Your options now are:

1) Add a new Time Capsule or a hard drive to the USB port on the existing Time Capsule and continue with backups

2) Manually delete backups from Time Machine....which is a long and tedious process. After a few hours, not much space will be reclaimed and it will not be long before the Time Capsule is full again

3) Erase the Time Capsule....if you really do not need all the old backups from months ago....and start over with a new Time Machine backup and move forward again