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9840 Operator Panel
9840 Tape Drive Operations Guide—429596-002
2-3
Operator Panel Switches
Table 2-1. Operator Panel Switches
Control Name Control Description
Unload Switch
Pressing this switch causes the tape to rewind and unload, ending
with the tape ejected and retrievable.
If this switch is pressed during a write operation, the tape drive
attempts to write the remaining data before it unloads. A display of
“UnWr xxxx” (meaning Unwritten Data, where xxxx is a fault
symptom code) means that the attempt failed and some data
remains unwritten to tape.
Pressing the Unload switch again causes the loss of this data. For
the NonStop servers to save the unwritten data, the operator must
issue the following SCSI command sequence before pressing
Unload again:
Recover Buffer Data