Chapter 3 Operating The Lto Library; Operator Control Panel (Ocp); Operating Modes; Ocp Philosophy - Fujitsu P3AM-5382-03ENZ0 Installing, Starting Up And Maintaining

Chapter 3
Operating the LTO Library
3.1

Operator Control Panel (OCP)

3.1.1

Operating Modes

There are two basic modes for Operator Control Panel (OCP). First is the User Interaction mode. This mode is
employed when a user is pushing buttons on the OCP. The second mode is the System Driven Mode. This is the
normal mode of operation. In this mode, the OCP displays status associated with the library actions that were
caused from commands issued via the library's other interfaces. Actions like Loading, Rewinding or Moving
tape will be displayed. When an OCP button is pressed and released, the OCP automatically transitions to User
Interaction Mode. User Interaction Mode will continue for 3 minutes after a user stops pushing buttons, or the
requested robot action stops - whichever is longer. At this time the OCP will return to System Driven Mode.
In case of activated User security feature the User Interaction Mode is restricted to the Information and Login
menu item, until a login with correct PIN is entered.
3.1.2

OCP Philosophy

During the following discussion of the OCP operation, several functional nuances may be clarified by defining
several rules the OCP must abide by. These rules of operation constitute a "philosophy".
• Any operational conflict between commands received over RMU and those entered via the front panel will
be avoided with a reservation mechanism on a "first-come, first-served" basis. Any reservation by the OCP
is canceled by an OCP logout or the timeout, which cancels the User Interaction Mode.
• Library firmware will not allow a user to select an impossible request. Those situations will include, but are
not limited to:
- Moving a cartridge from any source to a full slot
Unloading a cartridge from an empty slot
-
Moving a cartridge from any source to a full drive
-
- Unloading a cartridge from an empty drive
• Any error detected by the library controller or the drive and not recoverable through predetermined
firmware algorithms, will be considered as fatal. An error code will be displayed on the OCP and the error
LED will become illuminated. The error code will remain on the OCP until a push button is pressed, the OCP
will return to the Home Screen.
Numeric error codes are only used for unrecoverable, fatal errors, otherwise text status messages are
•
provided.
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