IBM Magstar 3494 Relationship between Operational Modes and States, Operational Mode Transitions

Intervention required

Indicates that a condition in the tape library must be corrected by operator intervention.

Library manager check-1 condition

Indicates that the library manager has detected an unrecoverable condition that does not allow continued execution of host requests, and will attempt to re-initialize or switch to the standby library manager if the high availability model is installed to correct the problem.

All storage cells full

Indicates that all of the customer storage cells in the library have cartridges assigned to them.

Out of cleaner volumes

Indicates that a clean operation is required; however, there are no usable cleaner volumes of the right media type in the tape library.

Note: This informational state is entered in a mixed tape drive system (3490E/3590), if either type of cleaner cartridge is missing.

Dual write disabled

Indicates that the process that keeps the secondary database in sync with the primary database is not running. This is normal if the second hard drive feature that provides a secondary database is not installed.

Relationship between Operational Modes and States

When an operational mode or state change is requested, the library manager must perform some steps before the change is completed. During this transition period, the immediate mode or state of the tape library is mode or state pending. For example, if the tape library is in the Online state and a request is made to enter the Offline state, the immediate operational state is Offline Pending. The System Summary window on the library manager console indicates whether the mode or state is pending. Sometimes the change between the modes and the states occurs quickly, and the pending status is displayed brie¯y.

Operational Mode Transitions

The library is only in one operational mode at any one time.

When a change in operational mode is requested from the library manager, a pop-up window is displayed that allows the operator to con®rm the mode change request.

Note: This applies to the active library when the high availability model is installed.

Pause Mode to Auto Mode

A request to enter Auto mode can be performed by the operator using the operator panel (see ªChanging to Auto Modeº on page 76) or by using the library manager. However the request is generated, the status of the 3494 is checked.

When a request to enter Auto mode is started using the library manager, the following actions occur during the change from Pause mode to Auto mode:

68Magstar 3494 Tape Library Operator Guide