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Storage refers to two different types of disk space: the space available for environment resources such as virtual machine templates and ISO files, and the logical or physical disks used by virtual machines. You can use two types of storage for virtual machines:
Virtual disks: disk image files on a file system.
Raw physical disks: LUNs accessed directly by the virtual machine.
Your storage can be any of the following:
iSCSI: Abstracted LUNs or raw disks accessible over existing Ethernet infrastructure (SAN)
FCP: Abstracted LUNs or raw disks accessible over Fibre Channel host bus adapters (SAN)
NFS: File-based storage over existing Ethernet infrastructure (NAS)
In addition to the storage entities you require for storage repositories, you should make sure you leave at least 12GB of disk space for each server pool file system. The server pool file system is used to hold the server pool and cluster data, and is also used for cluster heartbeating. You create server pool file systems the same way you create storage entities for storage repositories. For more information about the use and management of clusters and server pools, see Managing Server Pools.
Your storage may have been automatically discovered when you discovered your Oracle VM Servers. If not, you must register it. If your storage server exposes a writable file system (through an NFS share or a Sun ZFS storage pool) register the file server using the procedure in Registering and Configuring File Servers . If your storage server exposes raw disks (SAN volumes, iSCSI targets and LUNs) register the storage array using the procedure in Registering and Configuring Storage Arrays .
The following examples show how to register a file server . Before you register any storage, you must first perform any storage configuration outside of the Oracle VM environment, such as creating and exporting file system mounts on an NFS server.
