Error 0x80042921

Value: -2147210975 | 0x80042921 | 2147756321

What does it mean ?

The SHRINK operation against the selected LUN cannot be completed. The current state of the disk associated with the LUN is DYNAMIC OFFLINE.
Value: 10529 | 0x2921 | 0b0010100100100001

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