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Shutdown State to Library Manager Initialization State
This change occurs when the Library Manager controller is powered on or when a
severe error occurs.
Library Manager Initialization State to Initialization Complete
State
After the Library Manager starts the main process of the Library Manager
application, the 3494 Tape Library enters the Initialization Complete state. The 3494
Tape Library takes no actions during this change.
Offline State to Online State
Either you or the Library Manager can initiate the request to enter the Online state.
In either case, the following actions occur during the transition:
1. The Library Manager examines the database to determine if both the teach and
2. The Library Manager examines the status of the interfaces to the tape drives
3. If a VTS is installed, the Library Manager checks for defined "Fast Ready"
Online State to Offline State
You initiate a request to enter the Offline state. After you request it, the transition
must complete before you can request a transition to the Online state. The
following actions occur during the change to the Offline state:
1. The Library Manager sends a message to all attached hosts indicating that the
2. The 3494 Tape Library processes all host requests that the Library Manager
3. The Library Manager completes all internal commands that were queued before
4. After the Library Manager completes all queued commands and sends
Note:
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3494 Tape Library Operator Guide
the inventory operations have completed. The 3494 Tape Library cannot enter
the Online state unless they have completed.
and host systems to determine whether any interfaces are initialized with the
Library Manager. If at least one of the tape drive interfaces is initialized and
the associated controller is Online to the Library Manager, the 3494 Tape
Library enters the Online state and notifies all attached hosts. If no interfaces
are initialized, the 3494 Tape Library enters the Online state but does not send
a notification.
categories. If it finds none, a message stating that "Fast Ready" categories
should be defined is displayed for one minute or until you select OK. Notify
your system administrator if you see this message.
3494 Tape Library is entering the Offline state. The controllers, VTSs, and the
Library Manager will fail any later host requests for 3494 Tape Library
functions.
accepted and queued before the request to enter the Offline state. The Library
Manager provides responses to the requesting host as appropriate.
the request to enter the Offline state. If it detects errors, it sends appropriate
messages to all attached hosts.
responses, the 3494 Tape Library enters the Offline state.
1. The change from the Online to the Offline state can take more than ten
minutes if a High-Capacity Output operation started before the request
to go to the Offline state. The 3494 Tape Library needs this time to move
the cartridges to the High-Capacity Output Facility from the storage
cells. If a High-Capacity operation is in progress, you are prompted to
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