OCP 1Z0 053 222

222.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> lsdsk -I -d DATA 
Which statement is true regarding the outcome of this command? 
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. 

Answer: D 

http://docs.oracle.com/cd/E11882_01/server.112/e18951/asm_util004.htm#OSTMG94560

The lsdsk command can run in connected or non-connected mode. The connected mode is always attempted first. The -I option forces non-connected mode.

• In connected mode, lsdsk uses the V$ASM_DISK_STAT and V$ASM_DISK dynamic views to retrieve disk information. TheV$ASM_DISK_STAT view is used by default.

• In non-connected mode, lsdsk scans disk headers to retrieve disk information. Some information is not available in this mode and some options are not valid combinations with this mode.