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SAM SPENCER Server Virtualization. Agenda Introduction History Server Virtualization Software Server Virtualization Hardware Determining Server Hardware.

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Presentation on theme: "SAM SPENCER Server Virtualization. Agenda Introduction History Server Virtualization Software Server Virtualization Hardware Determining Server Hardware."— Presentation transcript:

1 SAM SPENCER Server Virtualization

2 Agenda Introduction History Server Virtualization Software Server Virtualization Hardware Determining Server Hardware Pros and Cons of Server Virtualization Pros and Cons of Dedicated Servers Hyper-V Demo

3 Introduction What is Virtualization?  Virtualization is the creation of a virtual resource or device where the framework divides the resource into one or more execution environments Examples of Virtualization  Virtual drives  Virtual memory  Virtual machines  Virtual servers Why is it popular?

4 History 1960s Machines  Did not scale well  Extremely expensive  Cost efficiency was desired IBM-360 Operating System (1964)  Virtual Memory IBM 370 Operating System (1972)  Virtual Machines  Used in many mainframe environments

5 Virtualization Software Microsoft Virtual Server (2005)  Came with Microsoft Server 2003  Did not scale well with 64 bit systems  Replaced by Hyper-V Microsoft Hyper-V (2008 & 2012)  Hyper-V is short for Hypervisor  Free release with Server 2008 and 2012  Best option for Microsoft based virtualization

6 Hyper-V Architecture

7 Virtualization Software VMware (Company)  Releases most popular line of virtualization software  First company to utilize virtualization on x86 machines  Software runs on Linux, Windows, and MAC vSphere (aka ESX)  Costly  High overhead VMware Server  Free  Not as powerful as ESX

8 ESX Architecture

9 Hypervisor The Hypervisor is the piece of software that enables virtualization It allows the host machine to allocate resources to guest machines

10 Hypervisor Type I versus Type II Hypervisor

11 Virtualization Hardware CPU  At least one CPU core per virtual machine  Having free cores for high stress situations recommended RAM  No set amount for RAM  Estimate minimum amounts of RAM and upgrade based on performance

12 Virtualization Hardware Networking  Multiple network cards required for increased throughput  Measure peak traffic amounts  Network Virtualization

13 Virtualization Hardware Storage  Local storage on servers is limited  Allow for 20% extra storage space for VM files and server snapshots  Storage Networks (highly recommended)  Storage Area Network (SAN) – Large data transfers  Network Attached Storage (NAS) – File-based data storage

14 Determining Server Hardware Apache Jmeter  Load Testing  Stress Testing  Data Analysis Demo

15 Pros and Cons of Server Virtualization Pros  Cost  Less physical servers  Less server space (consolidation of servers)  Less energy costs  Less maintenance  Efficient Administration  Easier management, management through one machine  Single point of failure  Smaller IT staff

16 Pros and Cons of Server Virtualization Pros  Growth and Scalability  Upgrading one server upgrades them all  Easy growth  Less hardware complications  Security  Single server security maintenance  Hypervisor software often provides security benefits  Legacy Servers  Upgrading servers to a virtual setup from old systems  Goes hand-in-hand with scalability

17 Pros and Cons of Server Virtualization Cons  Slow Performance  High stress on single machine  Longer processing times  More network bottlenecking  Single Point of Failure  Many servers on one host machine  Hardware or software failures can be critical  Backup servers will need to be setup

18 Pros and Cons of Server Virtualization Cons  Cost  High initial investment  Software licensing costs  Security  All servers through one machine  Learning curve  Many different types of software  Different architecture

19 Pros and Cons of Dedicated Servers Pros  High Performance  All resources on server are dedicated  Can handle high stress scenarios  Multiple Points of Failure  Easier to identify problems  Only one server will fail at a time

20 Pros and Cons of Dedicated Servers Pros  Price  Old servers already exist  No long term investments  If it’s not broke, don’t fix it  Small Learning Curve  Dedicated servers have been around for a long time  IT staff will not need to learn any new systems if dedicated servers already exist

21 Pros and Cons of Dedicated Servers Cons  Price  Long term costs of dedicated servers can add up  More applications and services = more servers  Servers not being utilized  Servers may not be efficient  Even at peak, some servers may not need all resources

22 Pros and Cons of Dedicated Servers Cons  Lack of growth and consistency  Adding servers for more services and applications  Expanding of physical space with servers  Software patches and updates will be inconsistent  Management can be difficult and inconsistent

23 Demo Hyper-V setup demo  How to install hyper-v  How to set up virtual server on machine  How to manage virtual server

24 References Grazino, Charles. A performance analysis of Xen and KVM hypervisors for Hosting the XenWorlds Project. Diss. Iwoa State University, Print.. IBM,. "Mainframes introduction 2." IBM.com. IBM. Web. 29 Oct Kleyman, Bill. "Hypervisor 101: Understanding the Virtualization Market." datacenterknowledge.com. N.p., 01 Aug Web. 29 Oct Laverick, Mike. Server Virtualization Basics: The Benefits of Server Virtualization. Newton: TechTarget, Print. Microsoft,. "Microsoft Announces General Availability of Virtual Server 2005." microsoft.com. Microsoft, 13 Sept Web. 29 Oct

25 References Microsoft,. "Microsoft Hyper-V Server 2012." microsoft.com. Microsoft, n.d. Web. 29 Oct


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