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Table 7. Diagnostic and Maintenance Functions (continued)
Function Code7-RunRS-422 Wrap Test
Causes the tape drive to perform a check of the circuitry from and to the RS-422 connector.
Before you select this function, attach an RS-422 wrap plug to the tape drive’s RS-422 connector (in place of the
RS-422 cable). To order the wrap plug (part number 19P0519), see “Appendix A. Tools and Supplies” on page 81.
1. Make sure that no cartridge is in the drive.
2. Within a 1-second interval, press the unload button three times. The status light becomes solid amber, which
means that the drive is in maintenance mode.
Note: If a cartridge is in the drive, it will eject the first time that you press the unload button and the drive will not
be placed in maintenance mode. To continue placing the drive in maintenance mode, remove the cartridge and
repeat this step.
3. Press the unload button once per second until 7 appears in the single-character display.
Note: If you cycle past 7, press the unload button once per second until it redisplays.
4. To select the function, press and hold the unload button for 3 seconds. After you select the function, the tape
drive automatically starts the test:
v If the test is successful, it loops and begins again. To halt the test, press the unload button. The test continues
to the end of its loop and then stops. The tape drive then displays 0, rewinds and unloads the cartridge, and
exits maintenance mode.
v If the test fails, 9 displays, the test stops, and the tape drive exits maintenance mode. To resolve the error,
locate 9 in Table 12 on page 53.
Function Code8-Convert FMR Tape to Scratch Tape
Causes the tape drive to erase the field microcode replacement (FMR) data on a scratch data cartridge and rewrite
the cartridge memory on the tape. This turns the cartridge into a valid scratch data cartridge.
1. Make sure that no cartridge is in the drive.
2. Within a 1-second interval, press the unload button three times. The status light becomes solid amber, which
means that the drive is in maintenance mode.
Note: If a cartridge is in the drive, it will eject the first time that you press the unload button and the drive will not
be placed in maintenance mode. To continue placing the drive in maintenance mode, remove the cartridge and
repeat this step.
3. Press the unload button once per second until 8 appears in the single-character display.
Note: If you cycle past 8, press the unload button once per second until it redisplays.
4. To select the function, press and hold the unload button for 3 seconds. After you select the function, C flashes.
When C flashes, the drive is waiting for a cartridge. Within 60 seconds, insert the FMR cartridge (or the tape drive
exits maintenance mode). After you insert the cartridge, 8 flashes, the tape drive erases the firmware on the tape,
then rewrites the header in the cartridge memory to change the cartridge to a valid scratch data cartridge:
v If the operation is successful, the tape drive displays 0, rewinds and ejects the newly converted scratch data
cartridge, and exits maintenance mode.
v If the operation is not successful, an error code displays. To resolve the error, locate the code in Table 12 on
page 53.
34 IBM Ultrium Internal Tape Drive
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