Error 0x80042595

Value: -2147211883 | 0x80042595 | 2147755413

What does it mean ?

VDS_E_DISK_NOT_OFFLINE  
This disk is already online.
Value: 9621 | 0x2595 | 0b0010010110010101

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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