Quantum DLT 8000 Product Manual page 90

Configuring, Installing, and Operating the Tape System
To select density on the tape system,
Load the tape cartridge into the tape system. The yellow Tape in Use indicator blinks
while the tape loads and calibrates.
After calibration is complete, the Tape In Use indicator remains steadily illuminated.
The appropriate tape density indicator along the left edge of the system's front panel
illuminates to indicate the tape's prerecorded density (if any).
Use the tape system's density Select Button to select the desired density, if different than
that indicated by the illuminated tape density indicator. Density selection is inactive
until a WRITE from BOT is issued. The controller retains the selected density until 1)
the density selection is changed, or 2) the tape is unloaded.
An example of selection of density follows.
Example:
A user loads a tape cartridge previously recorded at 20.0 GB capacity. The user then presses the
Density Select Button to select the density for 40.0 GB capacity. The following events take place:
The yellow 20.0 indicator remains illuminated – the density has not yet changed and the
steadily illuminated indicator reflects the tape's recorded density.
The yellow 40.0 indicator blinks – this signals that a density change is pending.
The yellow Density Override indicator illuminates.
When a WRITE from BOT occurs:
The yellow 20.0 indicator extinguishes
The yellow 40.0 indicator illuminates steadily
The yellow Density Override indicator remains illuminated
Table 2-10 explains the activity of indicators during density selection.
2-36 Quantum DLT 8000 Tape System