Verifying the processor compatibility mode of the mobile partition

You can use the Hardware Management Console (HMC) to determine whether the processor compatibility mode of the mobile partition is supported on the destination server, and update the mode, if necessary, so that you can successfully migrate the mobile partition to the destination server.

About this task

To verify that the processor compatibility mode of the mobile partition is supported on the destination server by using the HMC, complete the following steps:

Procedure

Identify the processor compatibility modes that are supported by the destination server by entering the following command on the command line of the HMC that manages the destination server:
```
lssyscfg -r sys -F lpar_proc_compat_modes
```
Record these values so that you can refer to them later.

Identify the preferred processor compatibility mode of the mobile partition:

HMC Version	Procedures
If you are using HMC Version 10.2.1030, or later	In the navigation pane, click System resources. Click Partitions. Alternatively, click Systems. In the work pane, click the server name that has the logical partition. In the navigation pane, click Partitions. The All Partitions page is displayed. In the work pane, select the logical partition and click Profiles > Manage Profiles. Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated. From the Actions menu, click Edit. The Logical Partition Profile Properties window is displayed. Click the Processors tab to view the preferred processor compatibility mode. Record this value so that you can refer to it later.
If you are using HMC Version 10.1.1020, or earlier	In the navigation pane, click Resources. Click All Partitions. Alternatively, click All Systems. In the work pane, click the server name that has the logical partition. Click View System Partitions. The All Partitions page is displayed. In the work pane, select the logical partition and click Actions > Profiles > Manage Profiles. Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated. From the Actions menu, click Edit. The Logical Partition Profile Properties window is displayed. Click the Processors tab to view the preferred processor compatibility mode. Record this value so that you can refer to it later.

HMC Version

Procedures

If you are using HMC Version 10.2.1030, or later

In the navigation pane, click System resources.
Click Partitions. Alternatively, click Systems. In the work pane, click the server name that has the logical partition. In the navigation pane, click Partitions. The All Partitions page is displayed.
In the work pane, select the logical partition and click Profiles > Manage Profiles.
Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated.
From the Actions menu, click Edit. The Logical Partition Profile Properties window is displayed.
Click the Processors tab to view the preferred processor compatibility mode. Record this value so that you can refer to it later.

If you are using HMC Version 10.1.1020, or earlier

In the navigation pane, click Resources.
Click All Partitions. Alternatively, click All Systems. In the work pane, click the server name that has the logical partition. Click View System Partitions. The All Partitions page is displayed.
In the work pane, select the logical partition and click Actions > Profiles > Manage Profiles.
Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated.
From the Actions menu, click Edit. The Logical Partition Profile Properties window is displayed.
Click the Processors tab to view the preferred processor compatibility mode. Record this value so that you can refer to it later.

Identify the current processor compatibility mode of the mobile partition.

If you plan to perform an inactive migration, skip this step and go to step 4.

HMC Version	Procedures
If you are using HMC Version 10.2.1030, or later	In the navigation pane, click System resources. Click Partitions. Alternatively, click Systems. In the work pane, click the server name that has the logical partition. In the navigation pane, click Partitions. The Partitions page is displayed. In the work pane, select the logical partition and click Profiles > Manage Profiles. Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated. Click the Processors tab and click Advanced.
If you are using HMC Version 10.1.1020, or earlier	In the navigation pane, click Resources. Click All Partitions. Alternatively, click All Systems. In the work pane, click the server name that has the logical partition. Click View System Partitions. The All Partitions page is displayed. In the work pane, select the logical partition and click Actions > View Partition Properties. Click the Processor tab and click Advanced.

HMC Version

Procedures

If you are using HMC Version 10.2.1030, or later

In the navigation pane, click System resources.
Click Partitions. Alternatively, click Systems. In the work pane, click the server name that has the logical partition. In the navigation pane, click Partitions. The Partitions page is displayed.
In the work pane, select the logical partition and click Profiles > Manage Profiles.
Select the active partition profile of the mobile partition or select the partition profile from which the mobile partition was last activated.
Click the Processors tab and click Advanced.

If you are using HMC Version 10.1.1020, or earlier

In the navigation pane, click Resources.
Click All Partitions. Alternatively, click All Systems. In the work pane, click the server name that has the logical partition. Click View System Partitions. The All Partitions page is displayed.
In the work pane, select the logical partition and click Actions > View Partition Properties.
Click the Processor tab and click Advanced.

Verify that the preferred and current processor compatibility modes that you identified in steps 2 and 3 are in the list of supported processor compatibility modes that you identified in step 1 for the destination server.
For active migrations and migration of a suspended partition, both the preferred and current processor compatibility modes of the mobile partition must be supported by the destination server. For inactive migrations, only the preferred processor compatibility mode must be supported by the destination server.
If the preferred processor compatibility mode of the mobile partition is not supported by the destination server, use step 2 to change the preferred mode to a mode that is supported by the destination server.
For example, the preferred mode of the mobile partition is the Power10 mode and you plan to migrate the mobile partition to a POWER9 processor-based server. The POWER9 processor-based server does not support the Power10 mode, but it does support the POWER9 mode. Therefore, you change the preferred mode to the POWER9 mode.
If the current processor compatibility mode of the mobile partition is not supported by the destination server, try the following solutions:
- If the mobile partition is active, it is possible that the hypervisor has not had the opportunity to update the current mode of the mobile partition. Restart the mobile partition so that the hypervisor can evaluate the configuration and update the current mode of the mobile partition.
- If the current mode of the mobile partition still does not match the list of supported modes that you identified for the destination server, use step 2 to change the preferred mode of the mobile partition to a mode that is supported by the destination server.
  Then, restart the mobile partition so that the hypervisor can evaluate the configuration and update the current mode of the mobile partition.
  
  For example, assume that the mobile partition runs on a Power10 processor-based server and its current mode is the Power10 mode. You want to migrate the mobile partition to a POWER9 processor-based server, which does not support the Power10 mode. You change the preferred mode of the mobile partition to the POWER9 mode, and then restart the mobile partition. The hypervisor evaluates the configuration and sets the current mode to the POWER9 mode, which is supported on the destination server.