Dell DR4000 Glossary page 19

Virtual Port or Virtual In the context of Dell Compellent Storage Center, Virtual Ports eliminate the need for reserve
Port Mode ports. When operating in Virtual Port mode, all front-end ports accept I/O and can be part of
one Fault Domain. For information on enabling Virtual Ports, refer to the Dell Compellent
Storage Center System Setup Guide.
virtual World Wide Port A virtual World Wide Port Name used in Dell AIM for creating SAN-booted personas.
Name (vWWPM)
Virtualization The ability to use software to share the resources of a single computer or storage device
across multiple environments. A single physical system or device may appear to the user as
multiple virtual systems able to host multiple operating systems.
VMRack A rack of virtual machines (VMs) on a server that is running a combination of agent software
and Red Hat Xen, VMware ESX, or Microsoft Hyper-V.
volume A discrete unit of storage striped to a storage device or devices.
volume collection A number of volumes grouped together for purposes of performing operations on the
volumes simultaneously. See snapshot collection, replica collection.
volume reserve Amount of space allocated to a volume from free pool space. Without thin provisioning,
volume reserve is the same as reported size.
Volume Type In the context of Dell Compellent Storage Center, Volume Type: can be dynamic, Replay
enabled, or Replication. A volume is dynamic until at least one Replay has been taken of that
volume. Once a Replay has been taken of a volume, it becomes Replay Enabled. A
Replication volume is one that is being Replicated to another Dell Compellent Storage Center
system.
vRack In the context of Dell AIM, a logical group of hosts connected to a virtual switch (vRack
switch).
vRack switch In the context of Dell AIM, a virtual switch that connects hosts in a vRack.
vWWPN See virtual World Wide Port Name.
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