The document provides an overview of cloud computing and virtualization. It discusses how virtual machines (VMs) allow multiple operating systems to run simultaneously on a single physical machine. VMs provide flexibility and efficiency for distributing compute resources. Cloud providers offer VMs that can run software applications, back up data, isolate browser activity, and host services in a scalable and cost-effective manner. Virtualization technologies like VMware, Citrix, and Microsoft enable various types of virtualization including server, desktop, application, memory, storage, and network virtualization.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
Basics of Cloud Computing and tools required to get into the cloud world. Simply put, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
Basics of Cloud Computing and tools required to get into the cloud world. Simply put, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.
A Rookie-level presentation on Virtualization, and a sneak peek Cloud Computing.
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Modern design is crucial in today's digital environment, and this is especially true for SharePoint intranets. The design of these digital hubs is critical to user engagement and productivity enhancement. They are the cornerstone of internal collaboration and interaction within enterprises.
2. History
First appeared in IBM mainframes in 1972
Allowed multiple users to share a batch-oriented system
Formal definition of virtualization helped move it beyond
IBM
1 . A VMM provides an environment for programs that is essentially
identical to the original machine
2. Programs running within that environment show only minor
performance decreases
3. The VMM is in complete control of system resources
In late 1990s Intel CPUs fast enough for researchers to try
virtualizing on general purpose PCs
Xen and VMware created technologies, still used today
Virtualization has expanded to many OSes, CPUs, VMMs
3. Virtual Machine
A virtual machine (VM) is a digital version of a physical
computer. Virtual machine software can run programs
and operating systems, store data, connect to networks,
and do other computing functions, and requires
maintenance such as updates and system monitoring.
4. Why We Need VM?
Multiple VMs can be hosted on a single physical machine, often a
server, and then managed using virtual machine software. This
provides flexibility for compute resources (compute, storage,
network) to be distributed among VMs as needed, increasing
overall efficiency. This architecture provides the basic building
blocks for the advanced virtualized resources we use today,
including cloud computing.
7. Types of Virtual Machine
• Process Virtual Machine
• Language Virtual machine
8. process virtual machines are designed to execute a
single computer program by providing an abstracted and
platform-independent program execution environment. A
process VM, sometimes called an application virtual
machine, or Managed Runtime Environment (MRE).
It is created when the process is started and destroyed
when it exits.
A process VM provides a high-level abstraction – that of
a high-level programming language (compared to the
low-level ISA abstraction of the system VM). Process VMs
are implemented using an interpreter; performance
comparable to compiled programming languages is
achieved by the use of just-in-time compilation.
Process Virtual Machine
10. This type of VM has become popular with the Java programming
language, which is implemented using the Java virtual machine.
The Parrot virtual machine, and the .NET Framework, which runs on a VM
called the Common Language Runtime. All of them can serve as
an abstraction layer for any computer language.
Unlike other process VMs, these systems do not provide a specific
programming language, but are embedded in an existing language;
typically such a system provides bindings for several languages
(e.g., C and FORTRAN).
Examples are PVM (Parallel Virtual Machine) and MPI (Message Passing
Interface). They are not strictly virtual machines, as the applications
running on top still have access to all OS services, and are therefore not
confined to the system model.
Language Virtual Machine
11.
How Does Cloud Computing use VM
Several cloud providers offer virtual machines to their customers. These
virtual machines typically live on powerful servers that can act as a host
to multiple VMs and can be used for a variety of reasons that wouldn’t
be practical with a locally-hosted VM.
These include:
• Running SaaS applications
• Backing up data
• Browser Isolation
• Hosting services
12. Software-as-a-Service, or SaaS for short, is a cloud-based
method of providing software to users, in which an
application is served to user over the Internet rather than
running on their computers. Often, it is virtual machines
in the cloud that do the computation for SaaS
applications as well as delivering them to users. If the
cloud provider has a geographically distributed network
edge, then the application will run closer to the user,
resulting in faster performance.
Running SaaS Application
13. Cloud-based VM services are popular for backing up data,
because the data can be accessed from anywhere. Plus,
cloud VMs provide better redundancy, require less
maintenance, and generally scale better than physical
data centers.
(For example, it’s relatively easy to buy an extra gigabyte
of storage space from a cloud VM provider, but much
more difficult to build a new local data server for that
extra gigabyte of data.)
Backing up Data
14. • Hosting services like email and access management -
Hosting these services on cloud VMs is generally faster
and more cost-effective, and helps minimize
maintenance and offload security concerns as well.
• Browser isolation - Some browser isolation tools use
cloud VMs to run web browsing activity and deliver safe
content to users via a secure Internet connection
Hosting Service and Browser Isolation
15. Virtualization is a technology to run multiple same or
different operating systems which is completely isolated
from each other . ”Ex: Run both Windows and Linux on
the same machine.
What is Virtualization
16. Server Virtualization
Desktop Virtualization
Application Virtualization
Memory
Storage
Data
Network
Types of Virtualization
17. Hardware virtualization or platform virtualization refers to the creation of
a virtual machine that acts like a real computer with an operating system.
Software executed on these virtual machines is separated from the
underlying hardware resources.
Different types of hardware virtualization include:
Full virtualization – almost complete simulation of the actual hardware to
allow software, which typically consists of a guest operating system, to run
unmodified.
Partial virtualization – some but not all of the target environment is
simulated. Some guest programs, therefore, may need modifications to run
in this virtual environment.
Para virtualization – a hardware environment is not simulated; however,
the guest programs are executed in their own isolated domains, as if they
are running on a separate system. Guest programs need to be specifically
modified to run in this environment.
Server Virtualization
18. Host servers connected over SAN
Hardware fail tolerance
High availability
Online live migration
Easy management
Disaster Recovery
Easily scalable, Adjustable
Different Vendor, Type, Model servers controlled by Hypervisor
Less hardware management / maintenance cost
Better efficiency with less cost
Maintain average utilization %
Server Virtualization- Benefits
19. Same as server Virtualization
User’s desktop runs on data servers as Virtual machines
Secured by design
Multiple OSes runs on same Hypervisor host
Centralized management
Shared resources with maximum utilization
Supports multimedia / memory intensive apps on VM
Desktop Virtualization
20. Centralized Service pack upgrade / OS patch
installation
OS upgrade from one version to another
High availability
Fault tolerance
Thin / Thick provisioned storage
Accessed via LAN, WAN, Internet & Mobile
Offline use with help of VM Player / XenClient on
Desktop, Laptop and ThinClients.
Desktop Virtualization - Benefits
21. Business applications runs on servers located in
datacenter
Secured by design
One / more apps runs on same set of servers
Centralized application management
Shared resources with maximum utilization
Supports multimedia / memory intensive apps
Reduces licensing cost
Role based user access controlled by policies
Application Virtualization
22. Applications delivered on-demand
No need to install and manage on every user desktop
Increased performance
Easily upgraded and deliver instantly
Published either locally installed or steamed to server
Application Virtualization - Benefits
23. VMware
Citrix
Oracle
Microsoft
Red hat
Amazon
Google
Virtual bridges
Proxmox
Parallels
Top 10 Virtualization Technology Companies
24. Virtual machines are a number of discrete identical
execution environments on a single computer, each
of which runs an operating system. This can allow
applications written for one OS to be executed on a
machine which runs a different OS which provide a
greater level of isolation between processes than is
achieved when running multiple processes on the
same instance of an OS.
Summary
