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Single-character Display (SCD)
The SCD ( 2 in Figure 3 on page 2) presents a single-character code for:
v Error conditions and informational messages
v Diagnostic or maintenance functions (while in maintenance mode only)
Appendix A, "Error Codes," on page 61 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.
Appendix B, "Performing Diagnostic and Maintenance Functions," on page 67 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
While in maintenance mode, the drive may display a single red dot in the
lower-right corner of the single character display
dump is available for downloading.
The dot flashes if a dump is in flash memory. The dot turns off when a dump is
copied to the server/host, to a tape cartridge, or to flash memory (see "Function
Code 5: Copy Drive Dump" on page 73).
Status Light
The Status Light ( 3 in Figure 3 on page 2) provides information about the state
of the unit. The light can be green or amber, and (when lit) solid or flashing.
Table 4 on page 17 lists the conditions of the Status Light and Single-character
Display (SCD) and provides an explanation of what each condition means. For any
condition other than those listed, the Status Light is not illuminated.
16
IBM TotalStorage 3580 Tape Drive Setup, Operator, and Service Guide
Attention
If you power off the drive before downloading the dump, the dump will be
lost.
8
. This indicates that a drive
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