Hi,
We use mminfo to get backup status codes. The logs are ok, but if a client doesn't run, or a group doesn't start, you probably won't know anything about it.
If you still want to use the logs, check for file changes during backup. Most are normal, but if someone creates a new db ona server, and backups are not setup for it, a recovery may not be easy (or possible)...
Good Luck!
-ag100