all about virtualization spiceworks - slideshare
Post on 18-Oct-2014
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Virtualization has fundamentally changed the shape of the IT landscape in the past decade. If you haven’t learned the ins and outs of hypervisors, hosts, and guests, attend our virtual webinar to learn about the different kinds of virtualization, the benefits of the technology, and the different players in the industry!TRANSCRIPT
Slide 1
All About Server
VirtualizationVirtually everything you need to know
@supertsaiPeter Tsai, Spiceworks IT Content Guru
Presented by Spiceworks
http://spiceworks.com/webinars
All About Server Virtualization
What is virtualization?
Why go virtual?
Who are the players?
How do I get started?
Where can I learn more?
What are other types of virtualization?
With Special Guest
Bill KindleNetwork/Systems Administrator - Dayton, OH
10 years in IT
What is Server Virtualization?Virtualization allows you to run multiple operating systems on a single physical computer inside of virtual machines (VMs)
A virtual machine is a software implementation of a computer running an operating system that behaves like a physical machine
A hypervisor is software that creates and runs virtual machines
Virtualization Layer
OS
APP
VM
OS
APP
VM
OS
APP
VM
Hardware Layer
HERE BE
HYPERVISORS
YARR!!
1 processor core 10 GB storage 4 GB memory 2 network adapters Windows 2008 R2
What is Server Virtualization?Hypervisors are the enabling technology of virtualization & cloud.
They allow abstraction of physical
hardware resources from software
Type 1 (bare metal or native)
hypervisor runs directly on hardware
without the need for an OS
Type 2 (hosted) hypervisor runs on
top of a conventional OS (the host)
Host
OSHost
Machine
Guests
Hypervisor Chart Image Credit: Wikipedia Commons
Guests
Why? Benefits of VirtualizationSave Money
More fully utilize your hardware resources
Increase server density
Power and cooling advantages
Quick provisioning / allocation of resources
Application isolation
Redundancy / Failover / Disaster Recovery
Increased uptime
Workload flexibility and the Cloud
Run legacy apps
Who is using Server Virtualization?
What are Virtualization concepts?Provisioning preparing a server with the necessary resources it needs for operation such
as allocating memory, storage, compute,
network resources & setting up / installing
software, drivers, identity information, etc
Thin Provisioning as needed provisioning
Self-service provisioning - allows users to create
their own VMs through software such as (vCloud
Director or MS App Controller)Self
Checkout
What are Virtualization concepts?
Live Migration moving a virtual machine between different physical machines or hosts without disconnecting clients or the application
Load Balancing distributing workloads evenly across multiple hosts so that resources are utilized efficiently
Failover - switching to a redundant or standby computer server, system, hardware component or network upon failure or abnormal termination
Virtualization Layer
OS
APP
VM
OS
APP
VM
Hardware Layer
Virtualization Layer
OS
APP
VM
Hardware Layer
OS
APP
MIGRATED VM
OS
APP
FAILOVER VM
95%
load
45%
load70%
load
70%
load
What are Virtualization concepts?Snapshot file-based copies of the state, disk data, configuration of a virtual
machine at a specific point in time.
Chargeback billing departments based on IT resources consumed
Orchestration - automated arrangement,
coordination, and management of
complex computer systems simplifies processes
OS
APP
VM
OS
APP
VM
Who are the major virtualization players?Type 1 (native) Hypervisors
VMware ESXi
Microsoft Hyper-V
Citrix XenServer
Red Hat Enterprise Virtualization
Oracle VM
Type 2 (hosted) Hypervisors
Parallels
VMware Workstation,
Player, Fusion
Microsoft XP Mode
Oracle VirtualBox
KVM
What are other kinds of Virtualization?Virtual Desktop Infrastructure (VDI) decouples
the workstation / desktop from the physical
machine.
Storage virtualization hides physical storage from
the user and presents them with logical volumes.
Network virtualization allows multiple physical
networks to be consolidated into a single logical
network, or a single physical network can be
segmented into separate logical networks.
How do I get started with Virtualization?
Determine your virtualization needs What are your main criteria?
Research the options available
Evaluate software (free versions / trials)
Consult your peers / network
Where can I learn more about Virtualization?
http://community.spiceworks.com/virtualization