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 4-21
Troubleshooting
Table 4-4 HVDS Library Controller Card LEDs
1) Controller LED
Color Description
Flashing Green Controller needs firmware.
Yellow In the process of powering up.
Yellow flash Controller failed power-on test.
Green Ready.
2) SCSI LED
Color Description
Yellow Error; single-ended SCSI device attached.