Figure 63 Sas 8Gb/S Input/Output Module Leds - Seagate Exos E 2U12 Series Hardware Installation And Maintenance Manual

The IOM has a number of ports, each with independent status LEDs. Those items in the state column with an asterisk (*)
indicate a fault condition.
LED Type
Module fault
Power on or
standby
Unit
ID
identification
(UID)
SAS port
Ethernet port Green
To replace a 5U enclosure input/output module:
1. Complete the following actions to remove the faulty IOM :
a. Facing the rear of the 5U enclosure, carefully remove all IOM connections.
b. Grasp the IOM release latch between thumb and forefinger, then squeeze together to release the latch and handle.
88 Chapter 10 In-service field maintenance for 5U enclosures
Color State
On*
Amber
Flashing*
Off
Green On
Amber On
None Off
On
White
Off
On
Green
Off
On*
Fast flash (1s on, 1s off)
Amber
Slow flash* (3s on, 1s off)
Off
On
Off

Figure 63 SAS 8Gb/s input/output module LEDs

С
Status
Ops panel undergoing 5s test
Rear panel area fault: IOM, fan, PSU
Drive module hardware fault, paired with drive module fault LED
Unknown, invalid, or mixed module type
Vital product data (VPD) configuration error or 1²C bus failure
Rear panel area modules functioning properly
IOM power is on
Part of standby sequence as EM comes online
IOM power is off
IOM UID active to locate or identify for service activity
IOM UID not active
Connected, link is up
Not connected or link is down
Critical SAS cable fault
SAS UID active
Non-critical SAS cable fault
SAS expansion port functioning properly
Connected, link is up
Not connected or link is down