Status LEDs
Unload Button
Operating Modes
The drive functions in the following modes:
Operation mode - functions include reading and writing data, cartridge manipulation, error reporting, and firmware
updating using an field microcode replacement (FMR) cartridge. For more information, see Status LEDs.
Maintenance mode - functions include drive diagnostic, creation/unmake FMR cartridge, and drive dump manipulation
(force to RAM, copy to tape, copy to flash memory, and erase flash). For more information, see Diagnostic and
Maintenance Functions.
The Unload button is used to switch between modes.
Single-Character Display (SCD)
The SCD presents a single-character code for:
Error conditions and informational messages
Diagnostic or maintenance functions (while in maintenance mode only)
Error Codes and Messages 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.
Diagnostic and Maintenance Functions 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
SCD Dot
If a drive dump is present while the drive is in maintenance mode, a single amber dot illuminates in the lower right corner of
the SCD. To copy the dump, see Function Code 5: Copy Drive Dump.
The SCD Dot is on solid if the dump is in RAM memory. The SCD Dot flashes if the dump is in FLASH memory.
The SCD Dot turns off when you obtain a dump (by using ITDT or a SCSI command) or update the drive firmware.
Note: If the drive dump is stored in RAM memory (SCD Dot on solid), the dump will be lost when you turn OFF the power or
reset the drive.
Status LEDs
The Status LEDs (2 and 3 in Figure 1) provide information about the state of the drive. The Ready status LED is green and the
Fault status LED is amber, and (when lit) solid or flashing.
Table 1. Status LED Combinations
Mode SCD Ready LED (green) Fault LED (amber)
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