Error 0xC0380028

Value: -1070071768 | 0xC0380028 | 3224895528

What does it mean ?

ERROR_VOLMGR_MEMBER_REGENERATING  
The specified member is already regenerating.
Value: 40 | 0x0028 | 0b0000000000101000

Where does it come from ?

FACILITY_USERMODE_VOLMGR  
User mode volume manager
Value: 56 | 0x038 | 0b00111000

Other Errors for FACILITY_USERMODE_VOLMGR