Selecting Density; Valid Densities; Selecting Density Using The Front Panel - Sun Microsystems SPARCstorage DLT 4000 Manual

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Selecting Density

Valid Densities

Selecting Density Using the Front Panel

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You can select the density that the tape cartridge will record data by using the
front-panel Select button or by using a software command. In either case, the
new density does not take effect until a write from beginning of tape (BOT) is
executed. Until then, the recorded density (for prerecorded tape cartridges) or
the default density (for blank tape cartridges) will be used.
Table 3-4 shows the densities that can be selected for the DLT4000 tape drive.
Table 3-4 Selectable Densities
Tape Type Default Density
III 10.0 Gbyte native
IIIxt 15.0 Gbyte native
IV 20.0 Gbyte native
To select density using the front panel:
1. Load the tape cartridge into the drive.
The Tape in Use LED blinks while the tape loads and calibrates. After
calibration completes, the Tape in Use LED remains lit. The LEDs on the left
side of the drive show the tape cartridge's prerecorded density.
2. Press the Select button until the LED(s) specifying the desired density
light.
The original density LED(s) will go out. The selected density LED(s) will be
on steady and the Density Override LED will blink. Then the selected
density will blink and the LED(s) for the original density and the Density
Override LED will be steady.
3. When a write from BOT occurs, the selected density will be used.
The selected density and the Density Override LEDs are on steady.
20-40 Gbyte SPARCstorage DLT4000 Tape Drive Manual—February 1997
Selectable Densities
2.6 Gbyte, 6.0 Gbyte, 10.0 Gbyte native or
10.0 Gbyte compressed
15.0 Gbyte native or 15.0 Gbyte compressed
20.0 Gbyte native or 20.0 Gbyte compressed