Error 360: The operation failed due to a virtual disk service error

I use DPM to backup a few servers, in a pilot group, and I was trying to add one to a protection group.  I kept getting this error every time I tried to modify the protection group to add another server:

Modify protection group: *Protection Group Name* failed:
Error 360: The operation failed due to a virtual disk service error
Error details: Unknown error (0x80042420)
Recommended action: Retry the operation.

I couldn’t figure out the problem until I saw a post on this that mentioned there could be a problem using RDP.  Then I remembered that I can never do disk configuration unless I use a console session.  In order to configure disks it seems you have to be in “Session 0”.  If you have to do this remotely, using “mstsc /console” for XP or 2003, or “mstsc /admin” for Vista will put you in “Session 0” just as if you were sitting at the console.

2 Responses to “Error 360: The operation failed due to a virtual disk service error”


  1. DPM 2007 – Adding More Disk Storage Error – 0×80042420 « geekmungus

    […] keyboard and mouse or DRAC/iLo or if you use RDP use it so you get into console mode see this link for details on […]

  2. Wayne Jones

    You sir, are a genius. THANK YOU SO MUCH!



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