Reassigning buses and IOPs

 

These steps reassign the new buses and IOPs to the required partition or partitions, which in turn correct the partition configuration errors.

1. Identify the new bus numbers for any new expansion units. Use dedicated service tools (DST) and the hardware service manager (HSM) to view the partitions' current resources and determine the new or reassigned bus numbers.

   1. Access DST and sign on.

   2. From the DST main menu, select option 7 (Start a Service Tool), and press Enter.

   3. Select option 4 (hardware service manager (HSM)), and press Enter.

   4. Select option 1 (Packaging Hardware Resources), and press Enter.
   5. Find the frame ID (from the front of the converted or recabled expansion unit), enter option 8 (Associated logical resources) beside it, and press Enter.

   6. For new expansion units, two buses are identified on the resulting display. Enter option 5 (Display detail) beside each bus and press Enter to identify and record the bus numbers for these expansion units.

   7. Exit the HSM and return to the main DST menu.

   8. From DST, select option 11 (Work with System Partitions) and press Enter. The Work with System Partitions display appears.

   9. Select option 1 (Display Partition Information), and press Enter. The Display Partition Information display appears.

   10. Select option 5 (Display System I/O Resources) to view the current partition resources. This view shows old buses and input/output processors (IOPs) as well as the new and changed buses and IOPs. Compare the input/output adapter (IOA) serial numbers on the bus identified in step 1 to the original printout to ensure that they match.

2. Correct the bus ownership for the new buses. The old buses are still assigned to the same partitions. Do not take any action on the old I/O resources at this time. From the Work with Partitions display, type option 3 (Work with partition configuration), and press Enter.

   • If the new buses are to be owned by a secondary partition, type option 4 (Remove I/O resources) and remove them and all of the I/O on them from the primary partition.

   • If the buses are to be owned by the primary partition, type option 5 (Change bus ownership type) next to the primary partition to correct the bus ownership of the new buses.

3. Assign the new buses and IOPs to the correct partition using the output from the LPAR Validation Tool (LVT) and the System I/O resources printouts. Add the bus and I/O resources to the required partition or partitions on the Work with Partition Configuration display using option 3 (Add I/O resources).

4. If a partition's load source, console, alternate IPL, or Electronic Customer Support resources are installed in a new expansion unit, reselect those resources for each partition affected by the upgrade. Use the Work with Partition Configuration display (options 6, 7, 8, and 9) as needed to assign the critical partition resources.
5. Turn on the secondary partitions in B manual mode.

6. Stop. Do not proceed until all secondary partitions turn on successfully. If a secondary partition does not turn on successfully, a previous step might not have been performed properly. Verify that all hardware is assigned to the correct partition or partitions. If hardware has not been assigned to the correct partition or partitions, repeat steps 1 through 5. If a secondary partition still does not turn on successfully, contact IBM^® software support for assistance.

7. At this time all hardware should be operational and assigned to the required partitions. Verify that all system hardware reports correctly at this time.

 

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Performing resource management

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Related concepts
Performing dynamic movement of resources