The storage resources underlying the built-in Oracle PCA ZFS storage repository and the server pool clustering file system are listed under the Storage tab within Oracle VM Manager. The internal ZFS storage is listed under the SAN Servers folder. Do not modify or attempt to delete this storage.
Compute node provisioning relies on the internal ZFS file server and its exported storage. Changing the configuration will cause issues with provisioning and server pool clustering.
While the storage repository on the internal ZFS Storage Appliance can be used for a basic virtualized environment and for test purposes, the preferred approach for production environments is to attach additional external storage for use within Oracle VM. The options to extend the storage capacity of an Oracle PCA are explained in detail in the Oracle Private Cloud Appliance Installation Guide: refer to the chapter entitled Extending Oracle Private Cloud Appliance - External Storage.
Information on expanding your Oracle VM environment with storage repositories located on the external Fibre Channel or InfiniBand storage is provided in the Oracle VM Manager User's Guide. Refer to the section entitled Storage Tab. You are also fully capable of using other networked storage, available on the public network or a custom network, within your own Virtual Machines.
