User's Guide

Operation and Maintenance 17
LED Indicators
Status LED
After initialization, the Status LED will be in one of the five states listed in Table 3-2:
Table 3-2 Status LED States
LED State LTO 200D LTO 400D
Off The drive has no power, is powered off,
or (if C is displayed simultaneously in
the single-character display) needs
cleaning.
The drive has no power or is powered off.
Green/Solid The LTO standalone is powered on. The LTO standalone is powered on.
Green/Flashing The Status LED flashes anytime there is
tape motion. For example, drive is
reading from, or writing to the cartridge,
rewinding the cartridge, locating data on
the cartridge, or unloading the cartridge.
If the LED flashes less than once per second the
drive is in sleep mode.
If the LED flashes once per second there is tape
motion. For example, drive is reading from, or
writing to the cartridge, rewinding the cartridge,
locating data on the cartridge, or unloading the
cartridge.
Amber/Solid The drive is in Maintenance Mode or
performing the POST.
The drive is performing a selected operation, the
drive is displaying the drive error log, or the
drive is in Maintenance Mode.
Amber/Flashing One of the following applies:
If the LED flashes once per second, an
error occurred and the drive and media
may require service. Note the code on
the single-character display, then go to
Table 4-2 Error Codes for its meaning.
If the LED flashes twice per second, the
drive is updating firmware via the FMR
tape or the SCSI interface.
If the LED flashes four times per second,
the drive detected an error and is
performing a firmware recovery. It resets
automatically.
One of the following applies:
If the LED flashes less than once per second, the
drive is updating firmware (via the FMR tape or
the SCSI interface) or the maximum drive
temperature was exceeded.
If the LED flashes once per second, an error
occurred, and the drive may require service.
Note the message on the LCD Message Display
and the code on the Single Character Display.
If the LED flashes twice per second, the tape
drive has detected an error is performing a
firmware recovery. It resets automatically.
Single-Character Display
After initialization, the single-character display will be blank (off) during normal operation of the drive. However, it will display a single-
character code when:
Executing certain diagnostic or maintenance functions.
Displaying error conditions and informational messages.
Also, a single red dot on the single-character display will be lit if the drive has created a dump (LTO 400Ds only). To copy the dump to a
tape, see Maintenance Mode.