HP StoreEver ESL G3 Tape Libraries - Manual (Page 210)

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Robotics control unit (RCU)
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Library motor drive (LMD)
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Ethernet expansion blade (EEB)
Figure 26 (page 210) shows the locations and colors of the status LEDs on the five blades that can
be in the library.
Figure 26 Colors of blade status LEDs
2. Robotics control unit 1. Management control blade
4. LEDs 3. Library motor drive
6. Control management blade 5. Ethernet expansion blade
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.
For a description of each LED color and what its state might mean, see Table 41 (page 211) . For
a description of how the blade status LEDs appear under normal conditions, see Table 42 (page 211) .
210 Troubleshooting your library