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3.5. Cluster Options

Cluster options, as you might expect, control how the cluster behaves when confronted with certain situations.
They are grouped into sets and, in advanced configurations, there may be more than one. [6] For now we will describe the simple case where each option is present at most once.

[6] This will be described later in the section on Chapter 8, Rules where we will show how to have the cluster use different sets of options during working hours (when downtime is usually to be avoided at all costs) than it does during the weekends (when resources can be moved to the their preferred hosts without bothering end users)