SYSBKPL

After you have replaced the part, make sure to set the enclosure serial number before powering up, otherwise the machine will not IPL. For more information, see Configuring I/O enclosures.

Use the table below to identify your machine type, model, and FRU, then click the associated link to find the service information for the specified FRU.

For B1xx SRCs:

To determine which system backplane to replace on models 561 and 570, use the last byte in word 3 of the primary SRC.

• If the last byte is a 10, then replace the primary unit, I/O backplane.
• If the last byte is a 20, then replace the secondary unit 1, I/O backplane.
• If the last byte is a 30, use one of the following methods to determine which backplane to replace:

  If you have access to the Advanced System Management Interface (ASMI), log on and display the details of the service processor error log. Using the Platform Event Log id (shown in the first table of each detail of the log), look at the first byte.

  • If the first byte is a 50, then replace the primary unit, I/O backplane.
  • If the first byte is a 51, then replace the secondary unit 1, I/O backplane.

  If you have access to an Hardware Management Console (HMC), log in as PE user and bring up Manage Serviceable Events under the Service Focal Point screen. Display the events for the corresponding service processor system, then double-click the system to see the details. Look at the Field Platform log ID, which contains a decimal value that you need to convert to a hexadecimal value.

  • If the first byte of the hexadecimal value is a 50, then replace the primary unit, I/O backplane.
  • If the first byte of the hexadecimal value is a 51, then replace the secondary unit 1, I/O backplane.