Error 0x8004270B

Value: -2147211509 | 0x8004270B | 2147755787

What does it mean ?

LUNs are associated with the specified target and must first be deassociated before the target can be deleted.
Value: 9995 | 0x270B | 0b0010011100001011

Where does it come from ?

COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

Other Errors for FACILITY_ITF