HP A5585A - SureStore DLT E Tape Library 4/40 Upgrade And Replacement Instructions page 113

Table 3-6 Drive Module LEDs
1) Yellow 2) Green
Off On
Flashing Off
On Flashing
Flashing On
On On
On Off
Flashes Off
Chapter 3
Description
Drive is online and
available.
Drive is offline and may
be replaced.
Drive is being brought
online.
Drive is offline. Internal
communication has
been lost.
Drive module controller
is in reset.
Power-on test in
progress.
Drive module failed
power-on test.
Downloading Firware and Interpreting LEDs
Library LEDs
3-13