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Table 7. Diagnostic and Maintenance Functions (continued)
Function CodeE-TestCartridge & Media
Causes the tape drive to perform a Write/Read test (on the edge bands) to ensure that a suspect cartridge and its
magnetic tape are acceptable. The tape drive takes approximately 10 minutes to run the test.
Attention: Data on the suspect tape will be overwritten.
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 E appears in the single-character display.
Note: If you cycle past E, 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 suspect data cartridge (or the
tape drive exits maintenance mode). After you insert the cartridge, E flashes:
v If no error is detected, the test begins again and runs for a maximum of 10 times. After the tenth loop, the test
stops and the drive automatically exits maintenance mode. To halt the test, press the unload button. The drive
acknowledges the request by slowing the length of time that the currently displayed character flashes on the
single-character display (from twice per second to once per second). 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 an error is detected, the tape drive displays 7, unloads the tape cartridge, and exits maintenance mode. To
resolve the error, locate 7 in Table 12 on page 53.
Function Code F - Fast Read/Write Test
Causes the tape drive to perform tests to ensure that the drive can read from and write to tape. This diagnostic
performs fewer tests than the Run Tape Drive Diagnostics test (Function Code 1). The tape drive takes approximately
three minutes to run the test. The Fast Read/Write Test is not as comprehensive a test and is not recommended for
isolating errors between the drive and the media.
Attention: Data on the suspect tape will be overwritten.
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 F appears in the single-character display.
Note: If you cycle past F, 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 suspect data cartridge (or the
tape drive exits maintenance mode). After you insert the cartridge, F flashes.
v If no error is detected, the test begins again and runs for a maximum of 10 times. Each loop takes
approximately 3 minutes to run. After the tenth loop, the test stops and the drive automatically exits
maintenance mode. To halt the test, press the unload button. The drive acknowledges the request by slowing
the length of time that the currently displayed character flashes on the single-character display (from twice per
second to once per second). 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 an error is detected, the tape drive displays an error code, unloads the tape cartridge, and exits maintenance
mode. To resolve the error, locate the code in Table 12 on page 53.
36 IBM Ultrium Internal Tape Drive
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