A site is a group of clusters for which you want to manage sets of protection groups, or multigroup, in a single operation. When you perform a switchover or takeover of a multigroup, a site is specified as the target.
Observe the following general guidelines when you configure a site:
First site controller – The cluster from which you create a new site is automatically configured as a site controller.
Multiple controllers – To avoid a single point of failure, configure at least two controller clusters in a site.
Zone clusters – A zone cluster can be a site member.