4.3. Configuring Memory Slots Reserved for the Self-Hosted Engine on Additional Hosts

If the Manager virtual machine shuts down or needs to be migrated, there must be enough memory on a self-hosted engine node for the Manager virtual machine to restart on or migrate to it. This memory can be reserved on multiple self-hosted engine nodes by using a scheduling policy. The scheduling policy checks if enough memory to start the Manager virtual machine will remain on the specified number of additional self-hosted engine nodes before starting or migrating any virtual machines. See Creating a Scheduling Policy in the Administration Guide for more information about scheduling policies.

To add more self-hosted engine nodes to the Red Hat Virtualization Manager, see Section 4.4, “Installing Additional Self-Hosted Engine Nodes”.

Configuring Memory Slots Reserved for the Self-Hosted Engine on Additional Hosts

  1. Click ComputeClusters and select the cluster containing the self-hosted engine nodes.
  2. Click Edit.
  3. Click the Scheduling Policy tab.
  4. Click + and select HeSparesCount.
  5. Enter the number of additional self-hosted engine nodes that will reserve enough free memory to start the Manager virtual machine.
  6. Click OK.