2. What is virtualization?
How does virtualization works?
Types of Virtualizations
Why virtualization ?
Virtualization using a Host-based Virtualization
Virtualization using a Bare-Metal Virtualization
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6. Here Virtualization is a method of running
multiple independent virtual operating systems
on a single physical computer by emulating the
physical resources of this physical computer
system , so as to better utilize the underlying
hardware resources
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10. Virtualization using a Host-based Virtualization
VMware WorkStation/VirtualServer
Citrix XenDesktop,
Sun xVM VirtualBox ; Oracle VM, IBM In-A-Box
OpenVZ: An open source product providing operating system
virtualization. Available for both Windows and Linux
Virtualization using Bare Metal Hypervisor / Native / Type 1:
VMware ESX Server
Microsoft Hyper-V
Citrix/Xen Server
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13. Product Suite > VMware vSphere
VMware vSphere virtualizes and aggregates the underlying physical hardware resources
across multiple systems and provides pools of virtual resources to the datacenter.
VMware ESXi - Abstraction layer hosting VMs
VMware vCenter Server -The central point for configuring, provisioning, and
managing virtualized IT environments.
VMware vSphere Client – Interface to connect remotely to vCenter Server or
ESXi
Vmware vSphere Web Client - A Web interface for remote management of
Virtual environment.
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14. A Virtualization Platform
Small Disk Footprint 144MB size
Advanced Memory Management :- Ability to reclaim unused memory, de-
duplicate memory pages, compress memory pages, swap to disk/SSD
Advanced CPU Management :- Tuned to support Intel SMT hyper-
threading; Supports 3D graphics accelerators.
Powerful feature rich Filesystem :- The VMFS
Virtual Security Technology :- Enables hypervisor level security
introspection
Flexible Resource Allocation :- Hot add VM vCPUs and memory, VMFS
volume grow, hot extend virtual disks, hot add virtual disks
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16. A virtual machine is a software computer that, like a physical
computer, runs an operating system and applications. The virtual
machine is comprised of a set of specification and configuration files
and is backed by the physical resources of a host.
The virtual machine typically emulates a physical computing
environment, but requests for CPU, memory, hard disk, network and
other hardware resources are managed by a virtualization layer which
translates these requests to the underlying physical hardware.
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19. Single point of control to the ESXi datacenter machines
Provides unification of the resources from the individual computing
servers to be shared among virtual machines in the entire
datacenter.
VMware® VMotion and Storage Vmotion capability enhancment .
VMware® High Availability (HA) capable .
VMware® Distributed Resource Scheduler (DRS)
VMware® Consolidated Backup (Consolidated Backup)
vNetwork Distributed Switch (DVS)
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24. Hypervisor Attributes VMware vSphere 5.1 Windows Server 2012 with Hyper-V (beta)
Citrix XenServer 6
Small Disk Footprint 144 MB disk footprint >5GB with Server Core installation
~10GB with full Windows Server
installation
>1GB
OS Independence No reliance on general purpose
operating system
Relies on Windows 2012 in Parent
Partition
Relies on Linux in Dom0
management Partition
Hardened Drivers Optimized with hardware vendors Generic Windows drivers Generic Linux Drivers
Advanced Memory
Management
Ability to reclaim unused memory, de-
duplicate memory pages, compress
memory pages, swap to disk/SSD
Only uses ballooning, requires special
drivers—no Linux, no NUMA.
Only uses ballooning.
Advanced CPU
Management
Tuned to support Intel SMT hyper-
threading; Supports 3D graphics
accelerators
No reliable performance advantage
when using hyper-threading
No reliable performance advantage
when using hyper-threading
Advanced Storage
Management
VMware vStorage VMFS Lacks an integrated cluster file system Lacks an integrated cluster file
system, storage features support
very few arrays
Virtual Security
Technology
VMware vShield Endpoint
Enables hypervisor level security
introspection
Nothing comparable Nothing comparable
Flexible Resource
Allocation
Hot add VM vCPUs and memory, VMFS
volume grow, hot extend virtual disks, hot
add virtual disks
Nothing comparable Nothing comparable
Simplified Patching No unrelated patching; Image-based
patching with rollback capabilities provide
clean and simple host patching
Subject to unrelated patching; Complex
patching architecture requires additional
effort and complexity
Subject to unrelated patching;
Requires manual updates
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25. VMware Workstation
VMware ESXi
VMware vSphere5.0
MODULE 2: Discussion on BareMetal Virtualization
MODULE 1: Overview of Desktop Virtualization
MODULE 3: Access environment of ESXi
MODULE 4: Working with Networks in ESX/ESXi host
MODULE 5: Configuring Storages
MODULE 6: VMware vCenter Server5.0
MODULE 7: Virtual
Machines
MODULE 8: Resource
Monitoring
MODULE 9: Scalability : vMotion , HA , DRS
28. 1>Use you physical systems multiple NIC card to make a
NIC bonding connected to you ESX vSwitch that helps in
increase network bandwidth.
2>Create a RHEL VM on ESXiA, build this VM as a NFS
server (with RHEL NFS configuration enabled), Assign
this NFS share as a NFS storage to the ESXiB.
3>Workout you Virtual infrastructure to make a RDM devices
being connected to you virtual machines.[A direct attached
disk(local/SAN) connected to a VM]
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