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 44-22
Table 4-5 LVDS 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 Controller passed power-on test.
2) SCSI LED
Color Description
Green No bus connected or low-voltage
differential SCSI bus connected.
Flashing Green Single-ended SCSI bus attached. SCSI
performance reduced.
Yellow High-voltage differential SCSI bus
connected. Error.