An occurs when a cannot communicate with a storage subsystem.
If a has only one responsive , all management operations that require communication with the unresponsive controller will fail. If both controllers are
unresponsive, you will receive an error message.
Note:
Before you perform any recovery procedure, wait a sufficient amount of time before you make a decision that the storage subsystem
is still unresponsive. The storage management station might take up to five minutes to find out when a storage subsystem has
become responsive or unresponsive.
If a storage subsystem is managed by using both the out-of-band method and in-band method using the same host, a network connection
problem on the controllers might prevent direct communication with the storage subsystem over the network. However, you might
still be able to manage the storage subsystem over the in-band connections. The opposite situation can also occur.
If a storage subsystem is managed through more than one , it is possible that the storage subsystem might become unresponsive to communication over the connections given by one host.
However, you might still be able to manage the storage subsystem over the connections provided by another host.