The PowerFlex SVM is a Linux-based VM dedicated to the PowerFlex system. The PowerFlex SVM must run on a single CPU socket on each physical node within the PowerFlex cluster. The SVM requires 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 can power off the SVM, you must put the PowerFlex node (SDS) into maintenance mode.
To associate the SVM with CPU 0:
- Log in to the PowerFlex UI. Connect to the MDM management IP address or hostname using the username (the default is admin) and password you specified during installation.
- Select the Backend view, as shown in the following figure:
Figure 5. PowerFlex UI: Backend view
- Select By SDSs table filter.
- Right-click the SDS node with the SVM you are powering off, and then select Enter Maintenance Mode. Confirm this step.
- 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 a new option.
- 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.
- In the Backend view, under By SDSs table view, right-click the SDS and select Exit Maintenance Mode. Confirm this step.
- Repeat the preceding steps 2 to 12 for every SDS in the cluster to associate all SVMs to the first NUMA node.