HP StoreEver ESL G3 Tape Libraries - Manual (Page 234)

Interpreting Blade Status LEDs
Each of the following library blades has a set of green, amber, and blue LEDs that indicate blade
processor status, health status, and power control status:
• Management control blade (MCB)
• Control management blade (CMB)
• Robotics control unit (RCU)
• Library motor drive (LMD)
• Ethernet Expansion Blade
Figure 27 shows the locations and colors of the status LEDs on the five blades that can be in the
library.
2. Robotics control unit 1. Management control blade
4. LEDs 3. Library motor drive
6. Control management blade 5. Ethernet expansion blade
Figure 27 Colors of Blade Status LEDs
.
Blade status LEDs provide troubleshooting information that you can use in conjunction with events that
the library creates. However, the LEDs might not directly correspond to events. The LEDs can indicate
a firmware or hardware problem so severe that the library cannot create or display an event. For
example, if the MCB firmware becomes inoperable, the amber LED flashes at 1Hz, but the library
might not be able to display any related events.
Troubleshooting your Library 234