By default, a datagrid repository named zos is automatically created when the Orchestration Server is initialized. The datagrid repository represents VMs residing in the Orchestration datagrid, which is a storage area on the Orchestration Server.
The zos datagrid repository has a location of grid:///vms, which points to an area in the datagrid reserved for VM archival storage.
The datagrid repository storage is archival because VMs cannot be run from the datagrid repository. You must move VMs out of the datagrid to a VM Host in order to run them.