You received a call today from a CLARiiON CX3 customer who has followed zoning best practices and is stating that they experienced a failure last night of SPB. When the SP failed, some hosts lost access to their data while others did not, even though the LUNs assigned to those hosts trespassed properly.
The customer would like you to help them find out why the hosts lost access to their data.
What does the customer need to deploy?

A.
Navisphere Agent on the affected hosts

B.
ControlCenter Master Agent on the hosts

C.
PowerPath on the affected hosts

D.
CLARalert