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All storage cells full
Out of cleaner volumes
Dual write disabled
Relationship between Operational Modes and States
When you request an operational mode or state change, the 3494 Tape Library
must perform some steps before it completes the change. During this transition
period, the immediate mode or state of the 3494 Tape Library is mode pending or
state pending. For example, if the 3494 Tape Library is in the Online state and you
make a request 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 briefly.
Operational Mode Transitions
The 3494 Tape Library is in only one operational mode at any one time.
When the Library Manager requests a change in operational mode, it displays a
window that allows you to confirm the mode change request.
Note: If the 3494 HA1 Option is installed, this applies to the active Library
Pause Mode to Auto Mode
You can use either the operator panel (see "Changing to Auto Mode" on page 115)
or the Library Manager to request a change to Auto mode. Either way you
generate the request, the Library Manager checks the status of the 3494 Tape
Library.
When you use the Library Manager to request a change from Pause mode to Auto
mode, the following actions occur:
1. The Library Manager checks the status of the interface to the cartridge accessor.
2. The Library Manager checks the cartridge accessor status. If it is not available
104
3494 Tape Library Operator Guide
Indicates that all of the customer storage cells in the 3494 Tape Library
have cartridges assigned to them.
Indicates that a clean operation is required; however, there are no usable
cleaner volumes of the correct media type in the 3494.
Note: This informational state is entered in a mixed tape drive system
(3490E, 3590, 3592), if any type of cleaner cartridge is missing.
Indicates that the process that keeps the secondary database in
synchronization with the primary database is not running. This is normal if
the second hard drive feature that provides a secondary database is not
installed.
Manager.
If it is not available, a window indicates that the cartridge accessor interface is
unavailable. You can cancel the request to change to Auto mode.
because of a previous failure, the Library Manager tests the accessor to
determine if it can be made available. If it can be made available, the Library
Manager attempts the transition to Auto mode. If the Library Manager detects
a hardware problem, the 3494 Tape Library returns to Pause mode, and a
window indicates that the cartridge accessor is unavailable. You can cancel the
request to change to Auto mode.
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