Administrator Guide

Table Of Contents
Use Unisphere Central to create datastores of type VVOL, which are mapped to the storage containers on the array using
Unisphere Central
Use vCenter to create VVol-backed VMs
Unisphere Central provides Summary and Storage views that provide information about storage containers, datastores, VVols,
and protocol endpoints. These objects are managed using Unisphere Central. Protocol endpoints are created automatically by
Unisphere Central and cannot be modified in any way.
Virtual Volumes Restrictions
Volume operations on virtual volumes (VVols) are restricted to specific operations.
Storage administrators use Unisphere Central to create storage container-backed vSphere datastores, also known as datastores
of type VVOL. From within the vSphere web client these VVol datastores look no different from VMFS or NFS datastores.
However, virtual machines stored within or on these VVol datastores are stored as virtual volumes on the array, organized within
the storage container. Many of the same operations that can be performed again on traditional volumes can be performed
against virtual volumes.
These volume operations are supported for VVols:
Show
Create Snapshot
Set Snapshot Profiles
Set Threshold Definitions
These volume operations are not supported for VVols:
Edit Name
Edit Properties
Map Volume to Server
Expand Volume
Delete
Migrate
Copy
Mirror
Replicate
Thick provisioning is not supported for operations such as creating or cloning a VVol VM. Only thin provisioning is supported.
VASA Provider
The VASA provider enables support for VMware VVols operations.
A VASA provider is a software interface between the vSphere vCenter server and vendor storage arrays. Dell provides its
own VASA provider that enables vCenter to work with Dell storage. This VASA provider supports the VMware VASA 2.0 API
specifications.
When the VASA provider is registered, vCenter can be used to create and manage VVols on the Storage Center.
You must configure the VASA provider if you intend to use VVols in your environment.
VASA Provider Restrictions
The following restrictions apply to the VASA provider:
The Unisphere Central VASA provider can be registered to only one vCenter Server.
All ESXi and vCenter Server requests to the VASA provider are mapped to a single Unisphere Central user.
The VASA provider does not support user-defined storage profiles. Only default system-defined storage profiles can be used
in VM Storage Policies.
Storage Center Administration
79