Quantum LTO-8 HH SAS, Technical Reference Manual

Page: 63 / 126

Chapter 4: Operations
Diagnostic and Maintenance Functions
QuantumLTO-8 HH SAS User’s Guide 55
5 Press and hold the Unload button for three or more seconds, then
release it to select one of the above functions. The drive
automatically starts the test. If you cycle past the desired code,
press the
Unload
button once per second until the code reappears.
6 The SCD will display a flashing 6 during the test.
• If no error is detected, the diagnostic will loop and begin again.
To stop the loop, press the Unload button for one second and
release. When the diagnostic ends,
0
temporarily appears in the
SCD, and the tape drive exits Maintenance Mode.
• If an error is detected, the Fault light flashes and the drive posts
an error code to the SCD. To determine the error, locate the
code in Appendix A, Error Codes and Messages
. To clear the
error either turn the power off and then on again, or reboot the
drive by pressing and holding the Unload button for 10
seconds.
Function Code 7: Run
RS-422 Wrap Test
Note: This function is described here for information only. It is not
supported on the LTO-6, 7 or 8 Tape Drives.
This test causes the drive to perform a check of the circuitry and
connector for the RS-422 interface. This connector supports the Library
Drive Interface (LDI) and the Automation Drive Interface (ADI).
Before selecting this function, attach an LDI or RS-422 wrap plug to the
drive's LDI or RS-422 connector (in place of the LDI or RS-422 cable).
1 Make sure that no cartridge is in the drive, and the appropriate
wrap plug is attached to the RS-422 connector.
2 Place the drive in Maintenance Mode. For instructions, see Entering
Maintenance Mode on page 48.
3 Press the Unload button once per second until 7 appears in the
Single-character Display (SCD). If you cycle past 7 , continue to press
the Unload button until it displays again.
4 To select the function, press and hold the Unload button for three
seconds. After you select the function, 7 flashes and the drive
automatically starts the test.
• If no error is detected, the diagnostic will loop and begin again.
To stop the loop, press the Unload button for one second and