Table 3 Fault Led Prioritization - Seagate Exos E 2U12 Series Hardware Installation And Maintenance Manual

3. Amber LED: Indicates a critical fault
4. Blue LED: Indicates system component identification, so is not a fault or critical condition
Since an amber fault LED uses fast or slow flashes to cover multiple conditions, this is the priority for simultaneous indications:

Table 3 Fault LED prioritization

Priority Flash rate
Top priority Fast flash (1s on, 1s off)
Priority 2 On
Priority 3 Slow flash (3s on, 1s off)
Lowest priority Off
The front panel area, controller module, and expansion module LEDs require further elaboration.
Interpret 2U12 and 2U24 operator's panel LEDs
The 2U 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.
48 Chapter 6 Operation of 2U enclosures
Indication Description
Identify Locate the enclosure or module
Fault Fault condition detected
Logical or non-critical fault Logical fault or non-critical notification
No indication System functioning normally