You have been tasked with migrating an existing physical server infrastructure to a virtualized

infrastructure.

An initial analysis of the physical infrastructure has identified the servers that can be migrated to

virtual machines and run on Hypervisors.

You are required to come up with a design that will facilitate the migration to a virtual infrastructure.

To do this you need to identify the following:

$1.$ The number of Hypervisors required:

i$.$ To run the virtual machines without any spare capacity

ii$.$ To run the virtual machines with $40\%$ spare capacity

iii. To provide High Availability for all virtual machines $25$ Marks

$2.$ The amount of memory $($RAM$)$ consolidation that can be safely achieved. Then, use this to

calculate how much memory will be required for each Hypervisor. $10$ Marks

$3.$ The cost savings in terms of the power required to run the Hypervisors versus the physical

servers over a year $($Given that each server consumes $500$w of power, requires $500$w of

cooling, and electrical power costs $10$c per kilowatt$-$hour$).15$ Marks

$4.$ The requirements for the shared storage environment.

This involves identifying:

i$.$ The number of hard disks required to store the virtual machine files

ii$.$ How the virtual machine files can be protected against disk failure

iii. The number of hard disks after the protection mechanism has been implemented

iv$.$ The cost of the overall shared storage solution $25$ Marks

$5.$ A sample diagram of the proposed infrastructure $($include Hypervisors, shared storage and

network infrastructure$).$ As well as this you should give a detailed description of the

components shown in the diagram $25$ Marks

Case Study Specification:

To assist you in this process you have been provided with the following information:

$$ There are $100$ physical servers that are to be migrated to virtual machines

$$ Of the $100$ machines:

o $76$ are non$-$clustered with $15\%$ CPU utilization and $8$GB of RAM $($@$10\%$ utilization$)$

per server

o $24$ are clustered with $12\%$ CPU utilization and $8$GB of RAM $($@$15\%$ utilization$)$ per

server and must support peak loads $2$x higher

o All $100$ machines have the same basic storage configuration of a single $30$ GB hard

disk for the operating system that the server would boot from and a second $200$ GB

hard disk that was used for the server$$s data.

$$ The shared storage solution will use $1$TB enterprise hard disk drives

$$ The cost of each $1$ TB enterprise disk for the SAN is $1000$