Exadata X5-2 ( RDBMS 11.2.0.4) : IO calibration NOT AVAILABLE !

Hi ,

Is it normal to have no IO calibration on Exadata (RDBMS 11.2.0.4) ?

SQL > select * from v$io_calibration_status

STATUS        CALIBRATION_TIME         

------------- ---------------------------

NOT AVAILABLE

 

Do you recommend to perform an IO calibration ? If yes , which INPUT values to use for Exadata :

DBMS_RESOURCE_MANAGER.CALIBRATE_IO (?,?, iops, mbps, lat);

DBMS_RESOURCE_MANAGER.CALIBRATE_IO (

   num_physical_disks      IN  PLS_INTEGER DEFAULT 1,

   max_latency             IN  PLS_INTEGER DEFAULT 20,

   max_iops                OUT PLS_INTEGER,

   max_mbps                OUT PLS_INTEGER,

   actual_latency          OUT PLS_INTEGER);

Best regards.

GD.