These asymmetric configurations are supported:
Compute servers with asymmetric PDomains configurations. For example:
First compute server with two populated PDomains
Second compute server with one populated and one unpopulated PDomain
Another example:
First compute server with eight CMIOUs
Second compute server with four CMIOUs
PDomains with asymmetric CMIOU configurations. For example, within a compute server:
PDomain 0 with 1 CMIOU
PDomain 1 with 2 CMIOUs
However, when ordering a SuperCluster M8 or SuperCluster M7, you typically are provided with symmetric PDomain and CMIOU configurations. To create asymmetric configurations, order additional individual CMIOUs as part of your initial order. Those CMIOUs will be installed in the appropriate slots to create the asymmetric configuration.
You cannot mix SPARC M8 or SPARC M7 compute server CMIOUs, as described in SuperCluster M8 and SuperCluster M7 Rules and Restrictions.
For example, assume you want two compute servers, and you want these asymmetric configurations on those compute servers:
Compute server 1:
PDomain 0 — 1 CMIOU
PDomain 1 — 2 CMIOUs
Compute server 2:
PDomain 0 — 3 CMIOUs
PDomain 1 — 4 CMIOUs
To create those asymmetric configurations, you can order a SuperCluster M8 or SuperCluster M7 with the following symmetric configurations, and add the necessary CMIOUs to create the asymmetric configurations:
Compute server 1:
PDomain 0 — 1 CMIOU
PDomain 1 — 1 CMIOU
1 extra CMIOU to add to PDomain 1
Compute server 2:
PDomain 0 — 3 CMIOUs
PDomain 1 — 3 CMIOUs
1 extra CMIOU to add to PDomain 1
In addition, by having the additional CMIOUs installed as part of the initial installation, your Oracle installer sets up your domain configurations based on the total number of CMIOUs in each PDomain that are part of the final asymmetric configuration. If you order additional CMIOUs after your system has been installed, contact Oracle to request a software reset and reinstallation process, so that the domain configuration is changed to reflect the new CMIOUs.
Refer to the Oracle SuperCluster M7 Series Upgrade Configuration Worksheets for information on upgrading your SuperCluster.