A、Only one I/O calibration process can run at a time.

B、It automates the resource allocation for the Automated Maintenance Tasks.

C、It improves the performance of the performance-critical sessions while running.

D、It can be used to estimate the maximum number of I/Os and maximum latency time for the system.

E、The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.