HP SureStore E Tape Library Models 2/20, 4/40, and 6/60 - (English) User's Guide

Troubleshooting, Removal, and Replacement
Interpreting Library LEDs
Chapter 4 4-19
Troubleshooting
Table 4-2 Slave Controller LED
Ready LED
Color Description
Yellow Default boot mode on power-up.
Will remain in this state until
board completes initilization.
Green Slave controller board is ready.