Resource Pool

A resource pool mainly has the following resources:

• VM instance: a virtual machine instance created in a compute node.
• Volume: a data disk used by a VM instance and provides additional storages for the VM instance.
• Image: an image template used by a VM instance.
• Affinity group: a simple orchestration strategy for specifying the binding relationship between VM instances and hosts.
• Instance offering: specifies the VM CPU, memory, I/O bandwidth, and other parameters.
• Disk offering: specifies the size of a VM data volume.
• GPU specification: specifies the frame count, RAM, resolution, and other parameters of a GPU device.
• Auto scaling group: an auto scaling policy based on load balancing for VM instances.
• Snapshot: a point-in-time capture of data status in a root volume or data volume.