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4. Record the location information.
Note: IBM provides hardware diagnostic aids and productivity tools, as well as installation aids for
Linux operating systems on IBM Power systems. See Service and productivity tools for Linux on
Power Systems servers
Activating the indicator light for the failing part:
If you know the location code of the failing part, activate the indicator light to help you locate which part
to replace.
To activate the indicator light, follow these steps:
1. Log in as root user.
2. At the command line, type /usr/sbin/usysident -s identify -l<location code> and press Enter.
3. Look for the system attention light to identify the enclosure that contains the failing part.
Note: IBM provides hardware diagnostic aids and productivity tools, as well as installation aids for
Linux operating systems on IBM Power systems. See Service and productivity tools for Linux on Power
Systems servers
Deactivating the failing-part indicator light:
After you complete a removal and replacement procedure, you must deactivate the failing-part indicator
light.
To deactivate the indicator light, follow these steps:
1. Log in as root user.
2. At the command line, type /usr/sbin/usysident -s normal -l<location code> and press Enter.
Note: IBM provides hardware diagnostic aids and productivity tools, as well as installation aids for
Linux operating systems on IBM Power systems. See Service and productivity tools for Linux on Power
Systems servers
Locating a failing part in a Virtual I/O Server system or logical partition
You can use Virtual I/O Server (VIOS) tools, before activating the indicator light, to locate a part that is
failing.
1. Log in as root user or celogin-.
2. At the command line, type diagmenu and press Enter.
3. From the Function Selection menu, select Task Selection and press Enter.
4. Select Display Previous Diagnostic Results and press Enter.
5. From the Display Previous Diagnostic Results display, select Display Diagnostic Log Summary.A
Display Diagnostic Log display appears. This display contains a chronological list of events.
6. Look in the T column for the most recent S entry. Select this row in the table and press Enter.
7. Choose Commit. The details of this log entry are shown.
8. Record the location information and the SRN value shown near the end of the entry.
9. Exit to the command line.
Use the location information for the failing part to activate the indicator light that identifies the failing
part. For instructions, see “Identifying a part by using the Virtual I/O Server.”
Identifying a part by using the Virtual I/O Server:
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