I would like to get a handle on how well your backup environments
perform relative to their size.

       Size = amount of data backed up on a weekly basis + number of jobs
Performance = % of backup success, success being exit code's 0 and 1 while
              exit codes 150 are ignored and all others constitute failure.

To give an idea the environment I am involved with does
~23TB a week, 2800 jobs over weekdays and 2000 jobs over the weekend.
Success rate on weekdays averages 99.88%. Success rate on weekend averages
99.79%.

Your experiences will give me (and maybe others) an indication of what is a
realistic expectation.

Regards
Peter Marelas