The PowerFlex SVM is a Linux-based VM that is dedicated to the PowerFlex system. The PowerFlex SVM must run on a single CPU socket on each physical node in the PowerFlex cluster. The SVM requires a minimum of eight vCPUs (cores). Although the CPU socket might have additional cores available, sharing this socket with production SAP HANA VMs is not permitted. The remaining cores on the socket can be used for nonproduction SAP HANA VMs and non-SAP HANA VMs.
Configuring PowerFlex SVM on the first CPU socket
For performance reasons, you must associate the PowerFlex SVM to the first CPU socket (CPU 0) of each physical node.
Note: Before you power off the SVM, put the PowerFlex node (SDS) into maintenance mode.
To associate the SVM with CPU 0 (the first CPU socket):
- Log in to the PowerFlex GUI using the username (the default is admin) and password that you specified during installation.
- Select SDS in the Configuration menu, as shown in the following figure:
Figure 5. PowerFlex UI: SDS view in Configuration menu
- Right-click the SDS node with the SVM you are powering off, and then select MORE > Enter Maintenance Mode. Confirm this step.
Figure 6. PowerFlex UI: Entering Maintenance Mode for SDS
- Log in to the vCenter through the vSphere web client and locate the vSphere server.
- Select the PowerFlex SVM, and then select Actions > Power > Shut Down Guest OS.
- Select the SVM, and then select Actions > Edit Settings.
- On the VM Options tab, expand Advanced and select Configuration Parameters > Edit Configuration.
- Click Add Row to add an option, and then:
- In the Name column, enter numa.nodeAffinity.
- In the Value column, enter 0 to associate the VM with the first NUMA node (CPU socket 0).
- Click OK twice.
- Select the SVM and power it on manually.
- Select SDS in the Configuration menu, right-click the SDS, and then select Exit Maintenance Mode. Confirm this step.
- Repeat steps 2 to 12 for every SDS in the cluster to associate all SVMs to the first NUMA node.