A can have an for several reasons. Use the procedure in this topic to determine a possible cause and solution.
Important:
The storage management software can take up to five minutes to detect that a storage subsystem has become unresponsive or becomes responsive again. Before completing this procedure, make sure that you wait some time before you decide that the storage subsystem is still unresponsive.For an out-of-band managed storage subsystem, determine if management operations are taking place on the storage subsystem from other storage management stations. A controller-determined limit exists to the number of Transmission Control Protocol/Internet Protocol (TCP/IP) connections that can be made to the controller before it stops responding to subsequent connection attempts. The type of management operations being performed and the number of management sessions taking place together determine the number of TCP/IP connections made to a controller. This problem is self-correcting because, after some TCP/IP connections terminate, the controller then becomes responsive to other connection attempts.