vRealize Automation uses explicit terminology to distinguish between resources that are available, resources that have been set aside for specific usages, and resources that are actively being consumed by provisioned machines.

The Resource Usage Terminology table explains the terminology vRealize Automation uses to display resource usage.

Table 1. Resource Usage Terminology

Term

Description

Physical

Indicates the actual memory or storage capacity of a compute resource.

Reserved

Indicates the machine quota, memory, and storage capacity set aside for a reservation. For example, if a compute resource has a physical capacity of 600 GB and there are three reservations on it for 100 GB each, then the reserved storage of the compute resource is 300 GB and the storage reserved is 50 percent.

Managed

Indicates that the machine is provisioned and currently under vRealize Automation management.

Allocated

Indicates the machine quota, memory, or storage resources actively being consumed by provisioned machines. For example, consider a reservation with a machine quota of 10. If there are 15 provisioned machines on it, but only 6 of them are currently powered on, the machine quota is 60 percent allocated.

Used

For virtual provisioning this indicates the amount of storage in use by provisioned machines. When standard storage is employed, storage used and storage allocated are the same. However, when space-efficient storage technology is employed (for example, FlexClone or thin provisioning) storage used is typically less than storage allocated because machines only consume exactly the amount of storage they require.

Free

For virtual provisioning, this is the unused physical capacity on a storage path.