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Case Study: 15
Proseware, Inc
Scenario
COMPANY OVERVIEW
Proseware, Inc. is a publishing company that has a main office and a branch office. The main
office is located in New York. The branch office is located in Sydney. The main office has
5,000 users. The branch office has 1,000 users.
PLANNED CHANGES
Proseware plans to deploy a new 64-bit Application named App2 to 10 users in the branch
office. Only members of the local Administrators group can run App2. Proseware is
evaluating whether to deploy virtual desktop pools. The virtual desktop pools must meet the
following requirements:
• Apply the settings in GPO1 to the virtual machines (VMs).
• Prevent the VMs from receiving the Automatic Updates settings from GP02,
• Ensure that only the host VM is affected if a virtual hard disk (VHD) file becomes
corrupt.
• Minimize the amount of storage used to support the VMs.
• Minimize the amount of memory and CPU resources used by the VMs.
• Minimize administrative effort.
EXISTING ENVIRONMENT
All servers run either Windows Server 2008 or Windows Server 2008 R2. All of the client
computers in the main office run Windows 7. All of the client computers in the branch office
run Windows XP (x86) with Service Pack 3 (SP3). All of the client computers in the main
office are configured as Microsoft Enterprise Desktop Visualization (MED-V) and Microsoft
Application Virtualization (App-V) clients. A two-node Hyper-V cluster is deployed in the
main office. The cluster uses Clustered Shared Volumes.
Existing Active Directory/Directory Services
The network contains a single Active Directory domain named proseware.com. The
functional level of the forest is Windows Server 2008. The relevant organizational units
(OUs) for the domain are configured as shown in the following table.
A custom Group Policy object (GPO) named GPO1 is linked to the domain, GPO1 contains
corporate computer security settings. A custom GPO named GP02 is linked to both office
OUs. GP02 contains Windows Server Update Services (WSUS) settings.
Existing Network Infrastructure
Each office has servers that have the following server roles or role services installed:
• WSUS
• Hyper-V
• File Services
• Remote Desktop Web Access (RD Web Access)
• Remote Desktop Session Host (RD Session Host)
• Remote Desktop Virtualization Host (RD Virtualization Host)
• Remote Desktop Connection Broker (RD Connection Broker)
REQUIREMENTS
Technical Requirements
When users interactively logs on to any of the client computers in the branch office, they
must automatically receive the local administrator rights to that computer. When users logs
off, they must lose the administrator rights. The disk space on all file servers must be
monitored. If any file server has less than 20% free disk space on a volume, a script must run
that deletes temporary files.
Problem Statements
The main office has a shared folder named Legal. The Legal share is only accessed by users
in the legal department. Legal department users report that it takes a long time to locate files
in the Legal share by using keyword searches.
###EndCaseStudy###
You need to recommend a VHD configuration for the virtual desktop pool VMs. What should you
include in the recommendation?
A.
differencing VHDs
B.
dynamically expanding VHDs
C.
fixed-size VHDs
D.
passthrough disks
Explanation:
http ://technet.microsoft.com/en-us/library/dd440865%28WS.10%29.aspx#dynamic
When is it appropriate to use dynamically expanding VHDs?
Dynamically expanding VHDs are useful in nonproduction environments where flexible storage
requirements and frequently changing the VHD image is more of an advantage than the reliability of
the data within the VHD. In addition, dynamically expanding VHDs are best for testing environments
because there is less impact if you have to rebuild the VHD. For example, a test environment can use
multiple dynamically expanding VHDs, each with a different Windows image and set of applications
to test. If the VHD files are modified during testing or accidentally become corrupt, you can replace
the VHDs from a safe copy and restart testing.
Using dynamically expanding VHDs in a test environment provides the following benefits:
Flexible use of disk space. You can use free space for the VHD to expand during native VHD boot.
This space would have been unavailable if the volume hosted multiple VHDs in a fixed format.
Faster transfer time when copying VHDs between locations. The file size for a dynamically expanding
VHD that is not using its maximum capacity, will transfer in less time between a network share and a
local disk than a fixed VHD of equivalent maximum size.
Although rare, you may consider using dynamically expanding VHDs in production environments if 1)
all of the content of the dynamically expanding VHD can be regenerated from other sources and 2)
critical data is stored on volumes outside the dynamically expanding VHD.