HP D3000 Disk Enclosures - Manual (Page 12)

Front status and UID module
The front status and UID module includes status LEDs and a unit identification (UID) button.
Front UID module LEDs
Fault conditions Operating condition Startup condition Indicator
N/A 1. HDD in Bay 1
Solid green Solid green 2. System Health LED •
Flashing amber:
non-critical error.
• Solid amber: critical
failure.
The UID is a locator LED activated by pressing the rear or the front UID buttons. 3. UID
12 Hardware