44 Chapter 6 Operation of 2U enclosures
Priority
Flash rate
Indication
Description
Top priority
Fast flash (1s on, 1s
off)
Identify
Locate the enclosure or module
Priority 2
On
Fault
Fault condition detected
Priority 3
Slow flash (3s on, 1s
off)
Logical or non-critical fault Logical fault or non-critical notification
Lowest priority Off
No indication
System functioning normally
Table 3 Fault LED prioritization
The front panel area, controller module, and expansion module LEDs require further elaboration.
Interpret 2U12 and 2U24 operator's panel LEDs
The storage enclosure operator's (ops) panel contains a series of LEDs to reflect system status. You can
monitor the ops panel LEDs to determine system status in combination with the user interface content.
In the case of a system fault condition, identified in the state column with an asterisk (*), troubleshoot the fault.
LED
Type
Color
State
Status
Power on or
standby
Green
On
Storage enclosure power is on
Off
Storage enclosure power off
Module fault
Amber
On*
Storage enclosure drive module fault, when paired with drive fault
LED
Module fault in rear panel area, when paired with a module fault LED
Off
Storage enclosure functioning properly
Unit ID (UID)
Blue
Flashing
Storage enclosure unit identification (UID) request active
Off
No UID request is active
LED display
Green
On
Unit identification value for storage enclosure
Figure 36 2U12 and 2U24 operator's panel LEDs
