Dell PowerVault TL4000 Provozní pokyny stáhnout pdf (Strana 26)

6 Operating the tape library

6.1 Operating Modes

There are 2 basic modes that the OCP operates in. First is the User Interaction mode. This mode is

employed when a user is pushing buttons on the Op-Panel. The second mode is the System Driven

mode. This is the normal mode of operation. In this mode, the Op-Panel displays status associated with

the actions that were caused from commands issued via the Drive’s serial interface. Actions like

Loading, Rewinding or Moving tape will be displayed. When an Op-Panel button is pressed and released,

the Op-Panel automatically transitions to User Interaction mode. User Interaction mode will continue

until 3 minutes after a user stops pushing buttons, or the requested robotic action stops - whichever is

longer. At this time the Op-Panel will return to System driven mode.

In case of activated User security feature the User Interaction Mode is restricted to the Information and

6.2 OCP Philosophy

OCP operation must obey some basic rules. These rules of operation constitute a ‘philosophy’.

• Any operational conflict between commands received over SCSI or 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 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

Moving a cartridge from an empty slot

Loading a cartridge from any source to a full drive

Unloading a cartridge from an empty drive

• Any error detected by the library or drive controller and not recoverable through predetermined

firmware algorithms will be considered as fatal. An error code will be displayed on the LCD and

the error LED will become illuminated. The error code will remain on the OCP until a push button

is pressed, which will cause the OCP to return to the Home Screen.

• Numeric error codes are only used for unrecoverable, fatal errors, otherwise text status

messages are provided.

6.3 Power-Up Display

When the Automatic Protection (AP) Series device powers up, or resets, it goes through several

internally controlled processes that allows it to get initialized and running. This processes are called

Power-On-Self-Test (POST). While the POST is happening, the Op-Panel shall have appropriate

information displayed to keep the user informed. When the loader finishes coming alive, it will display

the current device status for a defined time or until a key is pressed.

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Dell PowerVault TL4000 Provozní pokyny Strana 26