We came across an issue where large tape backup jobs that spanned multiple tapes would fail a full tape wasn’t swapped out within 1 hour in our standalone tape library.

The timeout for the “Job waiting for tape” alert can be increased by changing the “PromptingTimeOut” registry entry found under “HKLM\Software\Microsoft\Microsoft Data Protection Manager\1.0\Prompting”

The value for this registry entry is to be increased in milliseconds, below are some you made find useful:

2 hours = 7200000
12 hours = 43200000
24 hours = 86400000 
48 hours = 172800000

I attempted to remove a decommissioned server from DPM and realised there was no option on the Management tab or anywhere else in the GUI.

In DPM 2007, from the management tab you could run through the uninstall wizard and if it failed to contact the server you were given the option to delete:

In DPM 2010, from the DPM Management Shell you will need to run “Remove-ProductionServer.ps1”: