5190/5194 Modular Tape Subsystem Manual

Operating the Cartridge Tape Drive and ACL
5190/5194 Modular Tape Subsystem Manual—426878-002
4-9
Controls on the ACL Front Panel
Operator Buttons
The ACL control panel features seven operator buttons. Table 4-4 lists the buttons and
summarizes their functions. Confirmation messages appear on the message panel
after you press a button. These buttons are inactive when the ACL magazine door is
open or when the ACL does not contain a cartridge magazine.
Note that normal operation does not require use of the SHIFT and TEST buttons,
which are reserved for factory diagnostics. You can run operator diagnostics using
TMDS (see the TAPE subsystem information in the TMDS Reference Manual).
Table 4-4. ACL Operator Buttons
Operator
Button Function Notes
MODE SEL Changes the operating mode Compaq NonStop Himalaya systems
support only the auto mode. See Selecting
the Operating Mode on page 4-18.
POSITION Selects the cartridge to be
loaded from the magazine
Press this button (when a cartridge is not
loaded) to increment the position indicator
by one. Any of the seven cartridges, or the
cleaning cartridge, can be selected for
loading. The topmost cartridge in the
magazine is the default cartridge when no
cartridge has been selected.
RESET Changes the READY state of
the drive
Press RESET once to place the drive in the
NOT READY state if it is currently in the
READY state.
Clears error messages Press RESET twice to clear the message
panel.
SHIFT Reserved for factory
diagnostics
START Starts the autoloader
mechanism and loads a
cartridge
The magazine must be placed in the ACL
and the door must be closed. The ACL
must be in the auto mode (the system and
manual modes are not supported). In the
auto mode, the topmost cartridge in the
magazine is loaded into the drive.
Rewinds the tape, if necessary,
and changes the drive to the
READY state
This action occurs when a tape is loaded
and the drive is in the NOT READY state.
TEST Reserved for factory
diagnostics
Press TEST and hold down to display
complete text for a check code or error
message.
UNLOAD Unloads the cartridge and
ejects it into the magazine
The drive must be in the NOT READY state.
Press START to load the next cartridge.