HP Model 745 - VME Workstation Owner's Manual page 136

Using Mass Storage Devices
DDS Tape Drive and Data Cassette Descriptions
LED Warning Conditions
The following sections describe actions to take if the LEDs indicate a warn-
ing condition.
If the LEDs display the high humidity signal, the humidity is
High Humidity
too high. The drive does not perform any operations until the humidity
drops.
If the LEDs display the self-test (failure) signal, a fault
Self-Test (Failure)
was diagnosed during the self tests. Note the pattern of the pulses and con-
tact your local service representative.
Hewlett-Packard DDS drives continually monitor the
Media Wear (Caution)
number of errors they have to correct when reading and writing to a tape to
determine tape wear and tape head cleanliness. If excessive tape wear or
dirty tape heads are suspected, the drive warns you by displaying the Media
Wear (Caution) signal on the LED indicators.
8-18