Registering for Event Notification

Event notification allows tracking of events occurring in tape libraries for ACSAPI clients. This feature is provided by the CSC Toolkit. Specifically, with event notification, the ACSAPI client can do the following:

• Register for library resource events and/or volume events

• Un-register for these events

• Check registration status for library events and be notified when they occur

Client registration requests and event notification messages are delivered to the client until the registration is dropped. Event notification periodically checks the registration status of the client to verify that the client is alive. This avoids sending responses to clients that are no longer active and the unnecessary use of network resources.

The following types of events can be tracked:

• Addition and deletion of volumes and when maximum usage is exceeded for cleaning cartridges in the ACSLS database.

• Changes in library component status such as an LSM or drive changing from online to offline, diagnostic, or recovery; or a CAP that is opened or closed.

• Hardware failures such as an inoperable robotic hand.