A multigroup is a set of protection groups that you can manage in a single operation.
Observe the following general guidelines when you configure a multigroup:
Single site – All protection groups in a multigroup must be configured on clusters that are part of the same site.
Unique name – Multigroup names must be unique throughout the site. In addition, if multiple sites share a common cluster, those sites cannot contain multigroups of the same name.
Site-to-cluster configurations – A multigroup can consist of protection groups where one of the partner clusters is not configured in a site. In such a configuration, multigroup operations can only be performed from a cluster that is in a site. To manage protection groups from the partner cluster that is not in a site, you must manage the protection groups individually using the geopg command.
Protection group dependencies – One or more protection groups can be configured to have a strong dependency on a third protection group in the multigroup. When the protection groups in a multigroup are taken offline for a switchover or takeover, the depended-on protection group is taken offline after the protection groups that depend on it are taken offline. And when a multigroup is brought online, the depended-on protection group is brought online before the protection groups with a dependency on it are brought online.
Nested protection group dependencies – A protection group that other protection groups depend on can itself have a dependency on another protection group.
Single dependency – A protection group cannot have a direct dependency on more than one protection group.