IBM Magstar 3494 manual Initialization complete, Online State, Offline State, Shutdown pending

Initialization complete

The tape library starts the library manager application and determines the operational mode and state. The mode and state are based on the availability conditions of the components and whether the 3494 is taught and inventoried. If the 3494is taught and inventoried, the library manager waits for one of the following conditions:

vAn operator instruction to proceed to an operation mode and operational state.

vA time-out interval expires and causes the 3494 to go to the default operational mode and operational state set by the availability conditions of the tape library components.

Online State

In this state, the library manager accepts and processes host commands.

Offline State

In this state, the library manager does not accept or process host commands.

Commands received before entering the Offline state are processed.

Operations performed while the 3494 is in the Offline state, such as inventory, do not report errors to the host. Messages that may occur during Offline operations are displayed on the library manager console and the remote library manager console if the optional Remote Library Manager Console feature is installed.

Shutdown pending

The library manager closes and exits the library manager application.

Library Manager Switchover in Progress

When the high availability model is attached, this condition occurs when the active and standby library managers switch roles. This can occur on a failure or request by the operator. The library manager is in this state until the switchover completes.

Note: In case of a Library Manager failure, all attached hosts are noti®ed and the library is taken off line. There is a short delay while the switchover completes and the operator must then vary the library on line. Any tape job that abended (including those that use logical drives of a Virtual Tape Server) must be resubmitted, and failed in-process tape operations must be reissued. Library Manager console operations being performed by the operator, including VTS-related operations, may require a restart.

Accessor Switchover in Progress

When the high availability model is attached, this condition occurs when the active and standby accessors switch roles. This can occur on a failure or request by the operator. The library is in this state until the switchover completes.

66Magstar 3494 Tape Library Operator Guide