【单选题】You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command: ASMCMD> ...
A.
The command succeeds but it retrieves only the disk names.
B.
The command produces an error because the ASM instance is down.
C.
The command succeeds but it shows only the status of the ASM instance.
D.
The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.