POWER7 information

Configuring shared processor pools

If your managed system supports more than one shared processor pool, you can use the Hardware Management Console (HMC) to configure shared processor pools on your managed system in addition to the default shared processor pool. These additional shared processor pools allow you to limit the processor usage of the logical partitions that belong to the shared processor pools. All shared processor pools other than the default shared processor pool must be configured before you can assign logical partitions to these shared processor pools.

You can use this procedure only if the managed system supports more than one shared processor pool and the HMC is at version 7 release 3.2.0, or later.

The default shared processor pool is preconfigured, and you cannot change the properties of the default shared processor pool.

To configure shared processor pools using the HMC, follow these steps:
  1. In the navigation pane, open Systems Management and click Servers.
  2. In the work pane, select the managed system whose shared processor pools you want to configure, click the Tasks button, and select Configuration > Shared Processor Pool Management.
  3. Click the name of the shared processor pool that you want to configure.
  4. Enter the maximum number of processing units that you want the logical partitions in the shared processor pool to use in the Maximum processing units field. If desired, change the name of the shared processor pool in the Pool name field and enter the number of processing units that you want to reserve for uncapped logical partitions in the shared processor pool in the Reserved processing units field. (The name of the shared processor pool must be unique on the managed system.) When you are done, click OK.
  5. Repeat steps 3 and 4 for any other shared processor pools that you want to configure.
  6. Click OK.

After this procedure is complete, assign logical partitions to the configured shared processor pools. You can assign a logical partition to a shared processor pool at the time that you create the logical partition, or you can reassign existing logical partitions from their current shared processor pools to the shared processor pools that you configured using this procedure. For instructions, see Reassigning logical partitions to shared processor pools.

When you no longer want to use a shared processor pool, you can unconfigure the shared processor pool by using this procedure to set the maximum number of processing units and reserved number of processing units to 0. Before you can unconfigure a shared processor pool, you must reassign all logical partitions that use the shared processor pool to other shared processor pools.



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Last updated: Thu, September 20, 2018