IBM S822LC, Installing The System And Ordered Parts

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8. For the IBM Power System S822LC (8335-GCA and 8335-GTA) systems, ensure that the top cover is on
when running for thermal performance.
Identifying the system that contains the part to replace
Learn how to determine which server or enclosure has the part you want to replace.
About this task
If the part does not have problem indicator LED, you will need to use a troubleshooting program such as
impitool
to identify the issue.
LEDs on the 8335-GCA or 8335-GTA system
Use this information as a guide to the LEDs on the IBM Power System S822LC (8335-GCA and 8335-GTA)
system.
The LEDs indicate various system status. These LEDs are located at the front (as shown in Figure 63) and
at the rear of the system.
v The green LED indicates the power status.
– A constant light indicates full system power to the unit.
– A flashing light indicates standby power to the unit.
– It takes approximately 30-seconds from the time the power-on button is pressed to when the power
LED changes from flashing to solid. During the transition period, the LED might flash faster.
v The amber LED indicates a problem in the system. After a part is repaired, the amber LED takes a
minute to turn off.
v
The blue LED is used to identify the system that requires service.
LED indicators are located on the following parts:
v At the front of the system:
– Disk drives (green LED indicates activity; amber LED indicates a problem)
– Fans (green LED indicates activity; amber LED indicates a problem)
v At the rear of the system:
– Backplane, near the rear LAN port: Green, amber, and blue (same as on the front next to the power
button)
– Power supplies (Two green LEDs indicate AC and DC power; amber LED indicates a problem)
Figure 63. LEDs on an 8335-GCA or 8335-GTA system
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Installing the System and Ordered Parts for the 8335-GCA or 8335-GTA