The document discusses virtual desktop infrastructure (VDI), which allows users to access virtualized desktop environments running on remote servers in a data center. With VDI, desktop operating systems and applications are run within virtual machines on these centralized servers rather than locally on individual client devices. Users can access their virtual desktops from various locations through thin clients or other remote devices, with the experience being similar to using a local desktop. Benefits of VDI include easier management, security, mobility, and reduced costs compared to traditional desktop deployments.

1. By
PPM_Team10
University of Bedfordshire

2. VDI is an integrated solution of hardware, software and
management tools to provide a replacement for standard
desktop deployments.(Swsoft, 2013)
The design behind Virtual Desktop Infrastructure (VDI) is to
run desktop operating systems and applications inside virtual
machines that reside on servers in the data centre. Users
access the virtual desktops and applications from a desktop PC
client or thin client using a remote display protocol and get
almost the full features as if the applications were loaded on
their local systems, with the difference being that the
applications are centrally managed.(Swsoft, 2013)

3. VDI IN DIAGRAM
ESX Server
Virtual Center
3
3
3
2 2
2
1
• Connection using remote
display software (e.g.
RDP, VNC, etc.)
2
1
• Virtual desktops hosted
on VMware Virtual
Infrastructure
• Virtual Infrastructure
optimizes and manages
servers to deploy
desktops
Virtual Desktops
Secure Data Center
3
• Clients can be a
desktop, a laptop or a
specialized thin client
• Displays desktop of
remote virtual machine
(Omaha, 2006)

4. • Users can access their virtual desktop
from their home PC , mobile devices or
from office work stations.VDI connects
its user to the servers using remote
desktop protocol
• Remote desktop sessions are provided
to users using two types of services at
the server end one is virtual machine
based service and the other is session
based service.
• The internal architecture of VDI
consists of two layers, they are as
follows:
The core layer consists of all the
physical resources such as
network, storage and servers
At the top of the core layer there
are virtual machines running
which are connected to the core
layer.
The virtual machine consists of
Operating system and application.
(Omaha, 2006)

5. • Efficient use of CPU and memory resources
• Reduced desktop downtime and increased availability
• Easy remote access for end users to their desktop,
through various devices
• New users can be up and running quickly
• Centralized Client OS Management
• Rapid Client Deployment
• Reduction in desktop support costs
• Access to data is much improved as it is happening over
fast networks within the datacenter

6. • Security: Data and applications reside in secure data
centres
• Recoverability: VMs and data are backed up &
snapshots occur in data center so local desktop data can
be easily recovered
• Mobility: Users can connect from any device anywhere
and have same desktop experience
• Reduces power consumption by using thin clients on the
desktop and energy efficient servers in the Data Center

7. • Managing multiple desktop and applications for which it
is getting more difficult and expensive.
• Keeping updates to new operating systems and
maintaining security for every computer is also very
difficult.
• Allows users to instantly work from anywhere with no
advanced notice.
• Users are free to install whatever else they want on their
devices.
• Users may ignore instructions and fail to install updates
which can result in a comprised system if
infected.(VmWare, n.d)

8. • Bell Canada had a variety of issues that led it to VDI. It had to
support 8,000 call centre agents and faced rising support costs and
hardware attrition issues. It had to provide workers in customer
locations with secure and locked down systems. And it needed to
deploy 400 desktops within a three week period. To address all of
these issues, Bell Canada selected a solution that used a virtual
desktop infrastructure. This enabled the company to quickly deploy
new systems, centralize management, reduce total cost of
ownership, and provide security even when the workers were in
customer locations. Additionally, it gave Bell Canada hardware
independence, so partners can choose any system as long as it
runs Windows and supports the Windows XP RDP (remote desktop
protocol).

9. • Another early adopter is Wamego Telecommunications
Co. (WTC). The company provides telecommunications,
Internet, telecom services over the Internet, and cable
TV services in the Kansas River Valley. Going through a
period of tremendous growth, the company moved to
virtualized servers to cut costs. They realized several
benefits including Reduced deployment time from hours
to minutes, Centralised, simplified and Secured Desktop
management, Profit of 600$ per PC.

10. • The future of VDI looks bright. Agent less security is an
enabling technology that will let VDI go further for things
like consumer hosted desktops in the cloud and support
for mobile devices using virtual machines. In addition to
these the more we deploy VDI servers and thin clients,
the more we can save power consumption and cost.

11. • Virtual Desktop Infrastructure acceptance is becoming
more widespread every day with numerous companies
turning to Virtual Desktop Infrastructure technology for
their servers and in their data centres to simplify
administration and to reduce management chores. So if
you seek to extend the life of your pc or end points,
enjoy data accessibility, simplify security of desktops,
improve administration and manageability of desktops,
cost and risk reduction, improved productivity within
your computing enterprise, help yourself today and plan
your future with VDI.

12. • Swsoft (2013) Virtual desktop infrastructure. Available at:
http://www.networksasia.net/system/files/whitepaper/SWSoft_Virtual_Deskt
op_WP.pdf (Accessed: April 07 2013).
• Omaha , V. (2006) Virtual desktop infrastructure(VDI). Available at:
ftpsite.vmware.com/.../VDI_Connection_Broker_Partners.ppt (Accessed:
April 07 2013).
• Patrick, R. (2013) Virtual desktop infrastructure(VDI) overview. Available at:
http://www.virtualizationadmin.com/articles-tutorials/vdi-
articles/general/virtual-desktop-infrastructure-overview.html (Accessed: April
07 2013).
• Ziff, D. (2013) Virtual desktop infrastructure. Available at:
http://www.vmware.com/pdf/virtual_desktop_infrastructure_wp.pdf
(Accessed: April 07 2013).