IBM 39M5657, Руководство пользователя

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Operating the Drive
Operating the drive involves using the following front panel items:
v
Single-character Display (SCD)
v SCD Dot
v
Status Light
v Unload Button
Single-character Display (SCD)
The SCD (see
3
in Figure 2) presents a single-character code for:
v
Error conditions and informational messages:
“Error Codes and Messages” on page 45 lists the codes for error conditions and
informational messages. If multiple errors occur, the code with the highest
priority (represented by the lowest number) displays first. When the error is
corrected, the code with the next highest priority displays, and so on until no
errors remain.
v
Diagnostic or maintenance functions (while in maintenance mode only):
“Diagnostic and Maintenance Functions” on page 15 lists the single-character
codes that represent diagnostic or maintenance functions. To initiate a function
the unit must be in maintenance mode.
The SCD is blank during normal operation.
SCD Dot
If a drive dump is present while the drive is in maintenance mode, a single red dot
illuminates in the lower right corner of the SCD (
8
). To copy the dump, see
“Function Code 5: Copy Drive Dump” on page 19.
The SCD Dot turns off when you obtain the dump (by using an FMR tape, a SCSI
command, or a library command).
Status Light
The Status Light (
1
in Figure 2) is a light-emitting diode (LED) that provides
information about the state of the drive. The light can be green or amber, and
(when lit) solid or flashing. The table below lists the conditions of the Status Light
and Single-character Display (SCD) and provides an explanation of what each
condition means.
Table 1. Meaning of Status Light and Single-character Display (SCD)
If the
Status Light
is...
and the
SCD is...
Meaning
Off Off The drive has no power or is powered off.
Green Off The drive is powered on and in an idle state.
Flashing
Green
Off The drive is reading from the tape, writing to the tape, rewinding the tape, locating data
on the tape, loading the tape, or unloading the tape.
© Copyright IBM Corp. 2005
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