Offline

Definition

Signature

offline(s : set<server>)

The offline constraint forces every server in s to be set in the Offline state.

Usage

This constraint deserves first hardware maintenance concerns. Using this constraint, one datacenter administrator can turn off a set of servers to perform maintenance operation on the hardware

Classification

• Primary users: datacenter administrator
• Manipulated elements: Servers state
• Concerns: Resource management

Example

See also

Related constraints

• online: The opposite constraint that is used to force servers to being set in the Online state.

• maxOnlines: To restrict the maximum number of servers that are simultaneously in the Online state.