Virtual Data Centers (VDCs)
Virtual Data Centers (VDCs) define the assignment of one or more groups to a pool of physical resources. The pool consists of resources from one or more Clusters that could belong to different Zones or external public/hybrid clouds.
The default VDC created at installation is a special VDC that allows the use of all physical resources. The "users" group belongs to this VDC and new groups are automatically added to this default VDC.
Warning
You can modify the default VDC physical resources, even removing all assignments; however, the default VDC cannot be deleted.
To create a new VDC, navigate to the System → VDCs Menu and input a Name and allocate the desired Physical Resources under the General and Resources Tabs, respectively.
Virtual Data Centers add flexibility to the cloud environment and can be used for a variety of purposes, such as creating a Super-Cluster, where multiple Clusters can be combined, pooling physical resources that normally wouldn't combine (i.e. individual hosts that are sequestered to a certain Cluster or incompatible Clusters e.g. kvm-ceph
and kvm-qcow2
); alternatively, the resources can be partitioned and roped-off to limit what Groups or Users have access to use.