I looked at table sizes and pruned all of the no longer needed history stuff I could find (some of it quite large), and that solved the problem. I'm now around 1:40 for the DB backup.
But I'm concerned that I might go over the limit at some point and have to do something else. I've attached a log file of a DB backup.
Is there anything I can do if this happens, other than split the DB backup into several sections, based on tables?
Thanks.