Virtual Desktop Networking
Infrastructure Solutions and Training
For Educational Institutions, Small Size Businesses and Organizations
Available in CNI Since 2009
(Contact us for more details)
What is Virtual Desktop
Infrastructure?
Remote Desktop Virtualization
Host (RD Virtualization Host) is a new Remote Desktop Services role service
included with Windows Server 2008 R2. RD Virtualization Host integrates with the
Hyper-V role to provide virtual machines that can be used as personal virtual
desktops or virtual desktop pools by using Remote Appications and Desktop
Connection. User accounts can be assigned a unique personal virtual desktop or
be redirected to a virtual desktop pool where a virtual desktop is dynamically
assigned. RD Virtualization Host is an important component to the Virtual
Desktop Infrastructure (VDI) solution offered by Microsoft.
Why use Virtual Desktop
Infrastructure?
The Virtual Desktop
Ifrastruture solution includes the following scenarios:
-
Personal virtual desktops
are specific virtual machines that are hosted on an RD Virtualization Host
server that can be assigned to a user account in Active Directory Domain
Services (AD DS) to use as a personal virtual desktop, which the user can then
access by using Remote App and Desktop Connection or RD Web Access.
-
A
virtual desktop pool
is a group of identically configured virtual machines installed on an
RD Virtualization Host server and managed through Hyper-V Manager. Users can
access the virtual desktop pool through Remote App and Desktop Connection or
RD Web Access. Because the virtual machines are identically configured, the
user sees the same virtual desktop, regardless of which virtual machine in the
virtual desktop pool the user connects to.
Virtual Desktop Infrastructure
role services
The following role services
are included in a typical VDI deployment:
-
RD Virtualization Host: RD Virtualization
Host integrates with Hyper-V to host virtual machines and provide them to
users as virtual desktops. You can assign a unique virtual desktop to each
user in your organization, or provide them shared access to a virtual desktop
pool.
An RD Virtualization Host server has the following functions:
·
Monitoring
virtual machine guest sessions and reporting these sessions to the RD Connection
Broker server.
·
Preparing the
virtual machine for a remote desktop connection when requested by the
RD Connection Broker server.
-
RD Session Host: The
RD Session Host server running in redirection mode helps to securely redirect
an RDP client connection to a virtual machine. When a user requests a virtual
machine, the RD Session Host queries the RD Connection Broker server. The
RD Connection Broker server then provisions a virtual machine for the user,
and returns its IP address to the RD Session Host server. The RD Session Host
server running in redirection mode will then redirect the RDP client to
connect to the virtual machine by using the IP address.
-
RD Connection Broker: The
main function of RD Connection Broker is to broker a user connection to an
appropriate endpoint. Brokering of the connection involves:
·
Identifying the
virtual machine for the user to make a remote connection.
·
Preparing the
virtual machines for remote connections by communicating with the
RD Virtualization Host server (for example, waking the VM from a saved state).
·
Querying the IP
address of the virtual machine by communicating with the RD Virtualization Host
server. This IP address is returned to the RD Session Host server running in
redirection mode.
·
Monitoring user
sessions in a virtual desktop pool scenario. A user with an existing session in
a pool is redirected to the hosting virtual machine.
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