We had a cleaning problem with our 3590 Magstar a few months ago. Here is what we did though I don't know if yours is set up the same way. We did find out that the cleaning default 'preset' in the Library was not initiating cleaning. In the Magstar Library under Commands pull-down, then Cleaning(first selection) is where we then set our cleaning schedule. Select 'Clean based on usage', we set 100 where is says to 'Enter the number of mounts before the drive clean operation'. Under Maximum cleaner usage; 100 is also set. This has been working well for us.
Shannon Bach Madison Gas & Electric Co. Operations Analyst - Data Center Services e-mail [EMAIL PROTECTED]
