Hello vpsa, There is no out-of-Band management (remote management) for the MD1220.  The out ports are for expansion and Openmanage is the only way to manage MD1220 unless it behind a MD3200 or MD3200i then you would use MDSM to manage it remotely.  There is no way to power the unit down except from the power button in the rear of the MD1220.  If the virtual disk did show up then you should be able to reboot the system and all should show back up correctly but you will need to be onsite with the unit to do it. Please let us know if you have any other questions.
Is there a way to remotely manage a MD1220?  I can see how to mange virtual/physical disks, ect. through Server Administrator, but what about power cycling?  Specifically what if the host stops at the RAID controller during boot and says there are missing disks?  Is there a way to power cycle the MD1220 unit after shutting down the host?  I see there is a debug port on the back of the EMM, but I don't see anything that would support out of band management (unless it's supported via the debug port?) Sorry if this has been posted already, I didn't see a solution when searching.
MD1220 Remote Mangement