I had a minor issue with lingering ISOs in an VMM-environment. The issue wasn’t a technical one but a “soft” one. The users admins of the environment did not unmount ISOs after usage. So I created a small script that is triggered once a day and unmounts all ISOs that is more than a week old.
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I have created a SMA Runbook that is triggered once everyday to update a MySQL database with information about VM:s. The information is stored for administrative usage.