Adding Processing CPU Cores to the Hardware

If you increase the number of processing CPU cores on the computer, it does not automatically increase the number of CoreXL Firewall instances. You must manually configure the desired number of CoreXL Firewall instances in the cpconfig menu.

Important Notes for Cluster:

• You must configure the CoreXL in the same way on all the cluster members. Otherwise, a cluster member with a greater number of CoreXL Firewall instances by design enters the Down state (see sk42096).
• If you enable CoreXL, disable CoreXL, or change the number of CoreXL Firewall instances, you should treat this change as a version upgrade.

  Schedule a full maintenance window and follow the instructions in the R80.20 Installation and Upgrade Guide - Chapter Upgrading ClusterXL Deployments.

  Perform either a Minimal Effort Upgrade procedure (requires downtime), or a Zero Downtime Upgrade procedure (no downtime, but active connections are lost). Instead of the version upgrade, configure the CoreXL on each cluster member.