Dell PowerVault TL1000 - Manual (Page 32)

Table 2-1. Operator Panel component descriptions (continued)
Number Component Description
4 Cancel key Button that is used to cancel a user action and return to the
last menu item
5 Enter key Button that is used to display a submenu or to select a user
action
6 Ready/Activity
LED
Green LED lit when the unit is powered ON. The LED
flashes when there is any library activity or the library is
offline.
7 Clean Drive
LED
Amber LED lit when the drive needs cleaning. The LED
turns OFF after the drive is cleaned successfully.
8 Attention LED Amber LED lit when a cartridge is incompatible with the
drive, marginal, or invalid. The LED turns OFF when the
media is removed from the drive. The LED might also be lit
when there is a power supply problem.
9 Error LED Amber LED lit when there is an unrecoverable library or
drive failure. The corresponding error message displays on
the LCD display.
The Operator Panel operates in two basic modes:
v User Interaction mode - Mode that is employed when a user is pushing keys on
the Operator Panel.
v System Driven mode - Normal mode of operation where the Operator Panel
displays status in response to commands issued from the drive's internal
interface.
When an Operator Panel key is pressed and released, the Operator Panel
automatically changes to User Interaction mode. User Interaction mode continues
until 3 minutes after a user stops pushing keys, or the requested accessor action
stops, whichever is longer. Then, the Operator Panel returns to System Driven
mode.
If necessary, the Operator Panel automatically changes to System Driven mode.
When this change occurs, the library remembers what the user was doing before
the display mode changed.
Any operational conflict between commands that are received over the host
interface or the Web User Interface and those commands that are entered by way
of the Operator Panel are avoided with a reservation mechanism on a first-come,
first-served basis. Operator Panel commands are canceled by an Operator Panel
logout or timeout.
Library firmware does not allow a user to select an impossible request. Those
situations include, but are not limited to -
v Moving a cartridge from any source to a position occupied by another cartridge
v Moving a cartridge from an empty cartridge position
v Loading a cartridge from any source to a full drive
v Unloading a cartridge from an empty drive
Any error that is detected by the library or drive controller and not recoverable
through predetermined firmware algorithms is considered unrecoverable. When an
error occurs, an error code is displayed on the Operator Panel display and the
2-2 Dell PowerVault TL1000 Tape Autoloader User's Guide