We got a new iMac about a year ago and got the Time Machine external HD to do backups - both are the 1 TB version.
all was well till a few days ago, when we started getting messages that our backup failed; essentially it is telling us tat the backup disk is full. I am getting from the messages that there is a partition for backups on the time machine that allows for so many backups on a portion of the 1 TB disk (we have at least 70% or so of the iMac's HD unused).
does anyone know what the best course of action is here? Should we make the backup partition bigger to allow for more backups, or simply erase the backup and start over fresh from today?