I'm looking for a tool that would monitor disk usage over time. What I'm looking for is folders or files that grow unexpectedly over a short period of time.
Part of the problem is that when that data is absorbed by backuppc is is then "hardish" to remove it from there. And so we get bloated backups.
What I'm looking for would be an alert system with some sort of diff over du reports... on a daily or weekly basis.
Extra features : do the same with databases (postgres mainly). Notify user on a multi-user system.