Learn About Unresponsive Storage Subsystem Conditions

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A storage subsystem with an Unresponsive Status occurs when the only controller or both controllers cannot be reached by the storage management station. An Unresponsive Status is represented by this icon in the Device Tree or Device Table Views.

If the storage subsystem has an operational controller, you can launch the Subsystem Management Window, but all management operations that require communication with the unresponsive controller will fail. If both controllers are unresponsive, you will receive error notices if you attempt to launch the Subsystem Management Window. To recover from this, follow the procedures in Recovering from an Unresponsive Storage Subsystem Condition.

Important: It can take up to 5 minutes before the Enterprise Management software detects that a storage subsystem has become unresponsive or becomes responsive again. Before performing any suggested recovery procedures wait a sufficient amount of time before concluding that the storage subsystem is still unresponsive.

An individual storage subsystem can appear multiple times in the Device Tree. This occurs when: (1) a storage subsystem has been configured to be managed through each Ethernet connection on the controllers (directly managed ) and through a host's network connection (host-agent managed ), or (2) the storage subsystem is managed through more than one host with the Host-Agent Software installed (multiple host-agent managed).

In the example, the storage subsystem named Human Resources is attached to both the Alpha and Beta hosts. Both Alpha and Beta have Host-Agent software installed. Therefore, each can provide management connections to Human Resources.

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Recovering from an Unresponsive Storage Subsystem Condition