IBM SY44-5902-05 manual 137

Chapter 4. Service Reference Procedures

Examples: Missing or non-reporting system bus resources

On most systems with logical partitions, it is common to have one or more missing or non-reporting system bus resources under Hardware Service Manager. The following examples show some of the reasons why the system might show missing resources and corresponding actions to take.

v Residual resource names in primary or secondary partitions after a reconfiguration of resources. When resources are removed from a partition, there are two options:

– 1=Remove leaves the resource names (usually when switching resources across partitions temporarily. This option is used when the customer intends to switch the resources back to the original partition sometime in the future

Note: If the system has logical partitions, the terms: console, alternative console,

IPL, SST, DST, load source, alternate load source, power off, power on, panel function, product activity log, service action log, Licensed Internal Code log, and operating system refer to the logical partition that you are servicing (unless otherwise stated in a procedure, Failing Item, or Symbolic FRU).

Primary: If you are performing service in the primary partition, then the terms control panel, panel, panel functions, power off, power on, and system refer to the system unit and its control panel.

Secondary: If you are performing service in a secondary partition, then the terms control panel, panel, panel functions, power off, power on, and system refer to the partition status functions available under the Work with system partitions option on the SST/DST display of the secondary partition’s console or the primary partition’s console.

Failed partition: Failures can be reported from the partition that experienced the problem with a resource or from the primary partition or from a partition that shares the bus. Attempt to service from the failed partition unless otherwise directed.

System Attention Light: For secondary partitions, the system attention light is represented as the partition’s State on the Work with Partition Status display.

Powering off and on: Powering off and powering on a system with multiple partitions are different than a system with a single partition. Read and understand the power-off and power-on procedures referenced when a procedure directs you to power on or power off a system or partition.

Attention: Doing a dump or re-IPL of the primary partition will cause all secondary partitions to power down immediately. Be certain that all secondary partitions are able to be powered off at that time. Do not do a dump or re-IPL of the primary partition until the customer will allow all logical partitions to be powered off. To prevent abnormal IPLs in the secondary partitions, power down all secondary partitions before doing a dump or re-IPL of the primary partition. See “Performing an IPL to DST for secondary partitions” on page 6.

Note: When servicing any logical partition, you must use the service documentation that supports the version and release of the logical partition. See “Determining the release level of a logical partition” on page 138.

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