Hypervisor Management Overview

A hypervisor is software that arbitrates and controls virtual machine access to the underlying physical hardware. The Hypervisors page allows you to enable the creation of instances on an infrastructure resource through the assignment of tags. OpenStack can place and manage workloads on a variety of environments. For Stratus Cloud Workload Services, these environments are hardware nodes running hypervisors. This includes ESX Servers (VMware nodes), KVM nodes, Xen nodes, and HyperV nodes.

To add nodes to the list of hypervisors to be managed, the IT administrator makes OpenStack aware that the nodes exist by editing a file in the OpenStack environment. This lists the new nodes in the Discovered section of the Hypervisor page under Show Discovered. The IT administrator knows that there are items in the discovered section due to the number indicator on the Hypervisor page in the menu and on the Discovered Label on the page itself.

Should a hypervisor fail, failover recovery mode actions are executed as defined in the image assigned to the package.

In the main menu, click Hypervisors to display the Hypervisors page. The Group By options allow you to display hypervisors by:

• None (Default): Displays all hypervisors without a sort order.
• Hypervisor Group: Displays hypervisors by group.
• AZ: Displays hypervisors by the OpenStack defined availability zone.
• Status: Displays hypervisors by status: Enabled, Discovered, Running, or Stopped.
• Availability: Displays hypervisors by their assigned availability tags.

The Show option allows you to display hypervisors by:

• All: Displays a list of all hypervisors.
• Unmanaged: Displays a list of unmanaged hypervisors.
• Managed: Displays a list of managed hypervisors.
• Maintenance: Displays a list of hypervisors that are in maintenance mode.

• Discovered: Displays a list of hypervisors to which tags must be assigned before they can be utilized by the orchestrator.

  Note: The Show options change the total number count in the right column of the hypervisor list view. This total corresponds to the currently selected Show option.