Error 0x0004245A

Value: 271450 | 0x0004245A | 271450

What does it mean ?

VDS_S_IA64_BOOT_MIRRORED_TO_MBR  
You have mirrored your boot volume on a GPT disk, to an MBR disk. You will not be able to boot your machine from the secondary plex.
Value: 9306 | 0x245A | 0b0010010001011010

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

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