Virtualizing Restaurant Chain Current Infrastructure

The assignment is a design report that aims to virtualize the infrastructure of Barney's Incorporated, a restaurant chain with multiple hardware servers running idle. The goal is to optimize resource utilization, reduce costs, and increase high availability among nodes. The report outlines the current system infrastructure, scope of improvement, hardware/software requirements, and cost estimation. It also provides sketches of the system architecture, configuration details, and comparisons with other virtualization offerings such as cloud computing.

Bachelor of IT
Cloud, Virtualization and storage

EXECUTIVE SUMMARY:
This is a design report that aims at virtualizing the restaurant chain current infrastructure.
Virtualization is the concept of optimal utilization of the resources. It will not only save money
that is invested in buying the resources but will also optimally utilize the current resources so
that the whole cost which is invested is consumed. In this whole report, we will be analyzing the
current system infrastructure, decide what all is required to change so that the system can be
taken into the virtualized environment. Let us look at the report in detail to find out more about
this.

TABLE OF CONTENT
1. Summary of existing system
2. Scope of improvement
3. Hardware/ software requirements with cost
4. Sketches of the Infrastructure
5. Configuration
6. Comparison of features offered by other virtualization offerings
7. References

1. Summary of the existing system:
This company "Barney's Incorporated" has multiple hardware servers running and they
often find that many of the machines are running idle. They are interested in if they can
save money or at least space by virtualizing their infrastructure. The company has the
requirements for the following services that currently run on various servers/computers
that are hosted at their headquarters and restaurants. At present they are all run on
separate physical servers in the racks at the sites. This is a design report that aims at
virtualizing the restaurant chain current infrastructure. Virtualization is the concept of
optimal utilization of the resources. It will not only save money that is invested in buying
the resources but will also optimally utilize the current resources so that the whole cost
which is invested is consumed. In this whole report, we will be analyzing the current
system infrastructure, decide what all is required to change so that the system can be
taken into the virtualized environment. There are numerous scope of improvements
which is discussed in the next section.
2. Scope of Improvement:
As observed in the case study of this company, they have most servers sitting idle
and most of the hardware resources are wasted. To optimally utilize the resources,
virtualization must be integrated into the system. Currently, they run all the
applications on separate physical servers, this will be reduced to two physical servers or
two ESXI boxes. There will also be high availability among the nodes.
3. Hardware / Software requirement with cost:
We already have hardware in the form of servers and its resources. We will require
software or ISO images of the ESXI to install on the server that will provide a layer of
abstraction between host and guest operating system. Currently, they run all the
applications on separate physical servers, this will be reduced to two physical servers or
two ESXI boxes. There will also be high availability among the nodes.
The total cost to implement this system will be equivalent to $2.5 lakh
Routers will cost $20000
Core switches and SAN switches will cost around $50000
Servers will cost around $90000
Rest will be of cables, vendor support, connectivity, rent charges, etc

This is the High Availability representation in which each ESXI node acts as a data
centre and the web server is in the DC. The main concept is that if one node goes
down or fails, application is still working on the other node.
4. Sketches of system:
Logical Diagram:

Connectivity or physical Diagram:

5. Configuration
When moving towards virtualization, all the servers which are physical are formatted and
a hypervisor is installed on it. This layer creates an abstraction level between host and
guest operating system and lets the engineer create various virtual machine.
Let us see the configuration of hypervisor. We are using the VMware product that is
ESXI:

When the ESXI server is ready, you can deploy numerous virtual machines on it
according to the configuration of the server.
6. Comparison with other virtualization offerings;
There is one more beneficial concept in which you do not have to bother about the
servers, just access the applications whenever you feel like. This is cloud computing
whose backbone is virtualization. AWS is the open source cloud computing technique
that provides three services such as:
Platform as a service
Infrastructure as a service
Software as a service
Based on these, there are plans that are purchased by the customers to migrate their data
from local data centre to cloud. You do not have to spend money on maintaining your
own data centre. All will be managed by the cloud service provider.

This is the architectural diagram of the loud computing whose backbone is all
maf=de up of virtualization. The only difference is the servers you used to tackle
yourself, is now bwing maintained, configured and administered by the cloud service
provider. This saves the cost and money to deploy and manage the infrastructure.
7. References:
Barham, P., Dragovic, B., Fraser, K., Hand, S., Harris, T., Ho, A., ... & Warfield, A.
(2003, October). Xen and the art of virtualization. In ACM SIGOPS operating systems
review (Vol. 37, No. 5, pp. 164-177). ACM.
Chowdhury, N. M. K., & Boutaba, R. (2010). A survey of network virtualization.
Computer Networks, 54(5), 862-876.
Anderson, T., Peterson, L., Shenker, S., & Turner, J. (2005). Overcoming the Internet
impasse through virtualization. Computer, (4), 34-41.
Pfaff, B., Pettit, J., Amidon, K., Casado, M., Koponen, T., & Shenker, S. (2009,
October). Extending networking into the virtualization layer. In Hotnets.
Neiger, G., Santoni, A., Leung, F., Rodgers, D., & Uhlig, R. (2006). Intel Virtualization
Technology: Hardware Support for Efficient Processor Virtualization. Intel Technology
Journal, 10(3).
Sherwood, R., Gibb, G., Yap, K. K., Appenzeller, G., Casado, M., McKeown, N., &
Parulkar, G. (2009). Flowvisor: A network virtualization layer. OpenFlow Switch
Consortium, Tech. Rep, 1, 132.
Menon, A., Cox, A. L., & Zwaenepoel, W. (2006, May). Optimizing network
virtualization in Xen. In USENIX Annual Technical Conference (No. LABOS-CONF-

2006-003).