Responsibilities

The XAPI Toolstack forms the main control plane of a pool of XenServer hosts. It allow the administrator to:

• Configure the hardware resources of XenServer hosts: storage, networking, graphics, memory.
• Create, configure and destroy VMs and their virtual resources.
• Control the lifecycle of VMs.
• Monitor the status of hosts, VMs and related resources.

To this, the Toolstack:

• Exposes an API that can be accessed by external clients over HTTP(s).
• Exposes a CLI.
• Ensures that physical resources are configured when needed, and VMs receive the resources they require.
• Implements various features to help the administrator manage their systems.
• Monitors running VMs.
• Records metrics about physical and virtual resources.