– 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 rightmost PCIe slot 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)
Identifying the 8335-GTB that needs servicing
Use the Intelligent Platform Management Interface (IPMI program to turn on the blue identify LED to
help you find the IBM Power System S822LC (8335-GTB) system that needs servicing.
Procedure
Use the
ipmitool
command to activate the blue system identify LED.
For in-band networks, the chassis identify command is:
ipmitool -I <interface> chassis identify <interval>
Where:
interface
Is the interface that you are using to connect to the system; for example,
usb
.
interval
Is the time to turn on the identify LED in seconds. The default is 15; meaning the LED is on for
15 seconds then turns off. A value of zero (0) turns off the LED. A value of
force
turns on the
LED and leaves it on until turned off.
To run the command remotely over the LAN, the chassis identify command to enter is:
ipmitool -I lanplus -H <hostname> -U <username> -P <password> chassis identify <interval>
Preparing the 8335-GTB system to remove and replace internal parts
To prepare the IBM Power System S822LC (8335-GTB) system to remove and replace internal parts,
complete the steps in this procedure.
Procedure
1.
Complete the prerequisite tasks. For instructions, see “Before you begin” on page 189.
2.
Identify the part and the system that you will be working on. For instructions, see “Identifying the
system that contains the part to replace” on page 193.
3.
If applicable, open the rack front door.
4.
Attach the electrostatic discharge (ESD) wrist strap.
Attention:
v
Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to
an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging
your hardware.
v
When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock when
using or working on electrical equipment.
v
If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds.
5.
Remove the front cover. For instructions, see “Removing the front cover from an 8335-GTB system”
on page 204.
Common procedures for servicing or installing features
195
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