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					Robert Hilton
Virtualization Specialist
Link Computer Corporation
 Virtualization 101 – What is Virtualization?
 Design Components
 Software Overview
 Building a Foundation
 Backup Types and Scenarios
 Advanced Strategies
 Whiteboard and Interactive Discussion
“Virtualization is a technique for hiding the physical
characteristics of computing resources to simplify the
way in which other systems, applications, or end users
interact with those resources.”


 Decouples software from hardware.
 Consolidates resources that are traditionally siloed.
 Applications typically only use 10%
  to 15% of available resources.

 Hardware refreshes are expensive.
 Management is challenging.
   Consolidation and better use of computing resources.
   Reduced hardware expenditure.
   Simpler management.
   Easier troubleshooting.
   Improved energy efficiency.
   Lower cooling requirements.
Who first implemented virtualization?

   IBM used virtualization in the 1960s to logically
   partition hard drives on mainframe computers to
   allow for more efficient multitasking.

   In 1999, VMware introduced virtualization for the
   x86 platform in order to address the challenges
   created by low utilization, increasing costs,
   maintenance challenges, and insufficient failover.
   Computing Servers
       •   Servers that provide the consolidated resources for the virtual
           systems to operate.

       •   Manufacturer agnostic, with systems available from Dell, Cisco, IBM,
           HP, and more.
   Network Components
       •   The components that drive the connectivity between servers and
           corresponding network assets.
   Storage

      •   Centralized or local storage where all virtual data is located including
          operating systems and their associated file structures.

      •   Manufacturer agnostic, with systems available from Dell, IBM, HP,
          Cybernetics and more.
Number of servers being consolidated.
Current server storage capacities.
Current server disk performance.
RAM requirements.
Bottleneck minimization.
No single points of failure.
Network and storage throughput.
                                     Internet

Switching




                                     Existing
                                     Network

            Storage
                      VMware Hosts
                 VMware vCenter Suite


                  VMware vSphere
                   Availability        Security      Scalability

                 vMotion           vSheild Zones   DRS
                 Storage vMotion   VMSafe          Hot Add
 Application
  Services       HA
                 Fault Tolerance
                 Data Recovery



                    Compute            Storage        Network
                 ESX and ESXi      VMFS            Distributed
                 DRS and DPM       Thin            Switch
Infrastructure   Memory            Provisioning    Network I/O
   Services      Overcommit        Storage I/O     Control
                                   Control
Centralized management functionality that allows all hosts to be
managed from a single pane of glass. Allows for unified and
cross-host management of features and components.
                 VMware vCenter Server




                      Manage



VMware vSphere     VMware vSphere        VMware vSphere
“Hot” migration of a virtual machine from one physical host to
another.
Automatic migration of virtual machines from one host to another
in the event of a hardware failure.




                         Resource Pool



      VMware ESX          VMware ESX         VMware ESXi




     Operating Server     Failed Server      Operating Server
   Automatic vCenter-based updating of patches and updates for
   hosts as well as certain baselines for VMs.




                  VMware ESXi       VMware ESX        VMware ESXi

                                       Cluster




Update Manager                        Host Server
DRS is a load-balancing feature that will automatically vMotion
virtual machines to different hosts based on performance and load
analysis.



DPM is a load-balancing utility similar to DRS that will load-
balance virtual machines and shut down hosts during light-load
times to conserve energy.
                      Resource Pool



  VMware ESX          VMware ESX                 VMware ESXi




Standby Host Server            Power Optimized Servers
Allows for “hot” migration of virtual machines between datastores
in a cluster.

                          VMware ESXi
                            & ESX
Creates shadow copies of VM’s on other physical hosts,
effectively reducing failover time to zero.
                             No Reboot
                          Seamless Cutover




        VMware ESX         VMware ESX          VMware ESXi




        OperatingServer     Failed Server     OperatingServer
A forklift scenario for integrating virtualization, while optimal, can
be cost prohibitive. Consider a tiered, scalable approach.

 Utilize hardware refreshes as a starting point.
 Purchase slightly larger servers that are
  virtualization-capable.
 Consolidate multiple applications onto one
  virtualized host.
 Beware the “eggs to basket threshold.”
 Use allotted refresh budget to expand virtual
  cluster to encompass backup and failover.
 Virtualization provides an efficient and scalable way to manage all
 aspects of the backup and DR strategy.


Backup
  The scheduled snapshotting of an environment that is utilized in
  the event of application or software failure.
Archive
  Granular semi-permanent backups for use in file or singular VM
  recovery. Often stored offsite on disk, tape, or otherwise hosted.
 Virtualization provides an efficient and scalable way to manage all
 aspects of the backup and DR strategy.


Business Continuity
  Failover features that maximize server availability in an active
  environment in order to minimize downtime.
Disaster Recovery
  Complete replicated offsite environment prepared to activate and
  become production in the event of a total loss of the main site.
Storage sizing and management
   •   IOPS and understanding disk performance
   •   iSCSI vs. Fibre Channel
   •   Block vs. File level storage (SAN vs. NAS)
   •   Solid-State Drives
   •   LUN management
Disaster Recovery Scenarios - SRM
Virtual Switching – Distributed Virtual Switch
Virtual Desktops

				
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