Error 0x8004008E

Value: -2147221362 | 0x8004008E | 2147745934

What does it mean ?

IO_WARNING_VOLUME_LOST_DISK_EXTENT  
Extent %4 on disk %3 that is part of the fault-tolerant volume %2 is no longer accessible.
Value: 142 | 0x008E | 0b0000000010001110

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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