A customer has installed a new TS7740 with 4 TB cache, 2 performance increments and 4 backend TS1140
drives. VEHSTATS shows that the TS7740 is experiencing pre-migrate throttling during the overnight batch
run.
What is the correct course of action?

A.
Review the effect of throttling and the PMTHLVL value with the customer

B.
Advise the customer to purchase an extra 2 TS1140drives to relieve the throttling

C.
Advise the customer to purchase an extra 1 TB cache increment to relieve the throttling

D.
Advise the customer to purchase an extra performance increment to relieve the throttling