Identifying a failing part in an IBM i system or logical partition
You can activate or deactivate the indicator light by using IBM i to assist in locating a failing part.
Identifying a failing part in a Linux system or logical partition
If the service aids have been installed on a system or logical partition, you can activate or deactivate the
indicator lights to locate a part or compete a service action.
Locating a failing part in a Linux system or logical partition:
If the service aids have been installed on a system or logical partition, you need to activate the indicator
lights to locate a part.
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.
Related information
Service and productivity tools for Linux on POWER systems
IBM provides hardware diagnostic aids and productivity tools, as well as installation aids for Linux
operating systems on IBM Power systems.
Finding the location code of a failing part in a Linux system or logical partition:
To retrieve the location code of the failing part, if you do not know the location code, use the procedure
in this topic.
To locate the failing part in a system or logical partition follow these steps:
1. Log in as root user.
2. At the command line, type grep diagela /var/log/platform and press Enter.
3. Look for the most recent entry that contains a system reference code (SRC).
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:
38 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC
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