Tip: If the part does not contain a physical indicator light, a higher-level indicator light is activated.
For example, the indicator light for the backplane or unit that contains the part might be lit. In this
case, use the location information to locate the actual part.
12. Look for the enclosure indicator light to locate the enclosure that contains the part.
Important: A flashing amber LED indicates the location of the part and a solid amber LED indicates
that the part is failing.
Identifying a 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 complete a service action.
Finding the location code of a part in a Linux system or logical partition:
Use this procedure to retrieve the location code of the part to perform service operations.
To find the location code of a part in a Linux system or logical partition, complete the following 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.
Related information:
Service and productivity tools for PowerLinux servers from IBM
IBM provides hardware diagnostic aids and productivity tools, and installation aids for Linux operating
systems on IBM Power Systems servers.
Activating the indicator light for a part by using the Linux operating system:
If you know the location code of a part, activate the indicator light to help locate the part the while
performing service operations.
To activate the indicator light, complete the following 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 part.
Important: A flashing amber LED indicates the location of the part and a solid amber LED indicates
that the part is failing.
Related information:
Service and productivity tools for Linux on Power servers
IBM provides hardware diagnostic aids and productivity tools, and installation aids for Linux operating
systems on IBM Power Systems servers.
Identifying a part in a VIOS system or logical partition
Learn how to find the location code and identify a part by using the Virtual I/O Server (VIOS) tools.
Finding the location code of a part in a VIOS system or logical partition:
You can use Virtual I/O Server (VIOS) tools to find the location code of a part before you activate the
indicator light.
To configure the Virtual I/O Server system for identifying a part, complete the following steps:
Common procedures for installing, removing and replacing disk drives or solid-state drives 131
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