VIRTUALIZATION
OVERVIEW
2007 Baptist State Technology Group
Intro to Virtualization
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Separates the physical hardware from the
operating system.
Allows multiple virtual machines, with heterogeneous
operation systems to run in isolation, side-by-side on
the same physical machine.
Each virtual machine has its own set of virtual
hardware (e.g. RAM, CPU, NIC, etc.) upon which an
operating system and applications are loaded.
Intro to Virtualization
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Virtual machines are encapsulated into files, making
it possible to rapidly save, copy and provision a
virtual machine.
Full systems can be moved, within seconds, from one
physical server to another for zero-downtime
maintenance.
Benefits of Virtualization
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Partioning
 Multiple
applications and operating systems can be
supported within a single physical system
 Servers can be consolidated into virtual machines on
either a scale-up or scale-out architecture
 Computing resources are treated as a uniform pool to
be allocated to virtual machines in a controlled manner
Benefits of Virtualization

Isolation
 Virtual
machines are completely isolated from the host
machine and other virtual machines. If a virtual
machine crashes, all others are unaffected
 Data does not leak across virtual machines and
applications can only communicate over configured
network connections
Benefits of Virtualization

Encapsulation
 Complete
virtual machine environment is saved as a
single file; easy to back up, move and copy
 Standardized virtualized hardware is presented to the
application – guaranteeing compatibility
Why Virtualize?
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Consolidate Servers & Increase Operational
Efficiency
Minimize Downtime & Ensure Business Continuity
Streamline Software Development and Testing
Why not Virtualize?
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Hardward for servers is limited to CPU, memory,
NICs, hard drives, cd/dvd, video, partial USB,
partial SCSI.
Hardware for workstations is limited to above plus
audio, full USB support.
Add-on hardware such as fax cards, voice-cards,
etc, do not work.
Virtualization Approaches
Virtualization Products

Desktop (Host Based)
Microsoft Virtual PC
 VMware Workstation
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Server (Host Based)
Microsoft Virtual Server (Free with Windows 2003 Server)
 VMware Server (Free, runs on Windows and Linux)
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Server (Bare Metal/Hypervisor Based)
Virtual Iron
 VMware ESX Server
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Infrastructure
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VMware Virtual Infrastructure 3
VMware Workstation
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Best for testing new operating systems and
applications.
Best if you will be interacting with applications on
the virtual OS desktop.
Support for Windows Vista, multiple monitors, USB
2.0 devices.
Create virtual network with built-in DHCP server, up
to 10 virtual switches.
VMware Workstation
Demo
VMware Server
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Best for running production OS background server
applications
Good remote management
2 virtual machines per logical CPU
VMware Server
Demo
KBC Server Consolidation
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Equipment Replaced
4
Dell 1550 PowerEdge servers
 1 Dell 1650 PowerEdge server
 1 Dell 2650 PowerEdge server
 1 Dell 400SC PowerEdge server
KBC Server Consolidation

2 x Dell 2950 PowerEdge servers
2
Quadcore Intel Xeon 1.9 GHz processors
 8 Logical Processors for a total of 15 GHz
 16 GB RAM
 6 GB NICs
 $13,438

Dell AX150i iSCSI SAN
 Dual
Storage Processors
 12 x 500GB SATA II drives
 $16,436
KBC Server Consolidation

VMware Virtual Infrastructure 3 Enterprise licensed
for 4 physical CPUs and VirtualCenter
 ESX
Server
 Vmotion
 VMware HA
 VMware DRS
 Vmware Consolidated Backup
 iSCSI, NAS, SAN, up to 4-way virtual SMP
 $18,463
KBC Server Consolidation
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Replaced 7 physical servers
Move to iSCSI SAN
Processing power to run up to 64 virtual machines
Memory capacity to run up to 20 virtual machines
Currently running 11 vitual machines
Total cost of $48,337.19
VMware Virutal Infrastructure 3
Demo
VMware Virutal Infrastructure 3
Demo