Error 0x00042467

Value: 271463 | 0x00042467 | 271463

What does it mean ?

VDS_S_MBR_BOOT_MIRRORED_TO_GPT  
You have mirrored your boot volume on an MBR disk, to a GPT disk. You will not be able to boot your machine from the secondary plex.
Value: 9319 | 0x2467 | 0b0010010001100111

Where does it come from ?

FACILITY_ITF  
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