Cloud Computing. Dipl.-Wirt.-Inform. Robert Neumann

Save this PDF as:
Size: px
Start display at page:

Download "Cloud Computing. Dipl.-Wirt.-Inform. Robert Neumann"

Transcription

1 Cloud Computing Dipl.-Wirt.-Inform. Robert Neumann

2 Pre-Cloud Provisioning Provisioned IT Capacity Load Forecast IT Capacity Overbuy Underbuy Fixed Cost for Capacity Investment Hurdle Real Load Time 144

3 Cloud Elasticity Provisioned IT Capacity Load Precast IT Kapazitäten Elimination of Underbuy Reduction of Overbuy Reduction of Capacity with Declining Load Lower Initial Invest Real Load Zeit 145

4 Cloud Characteristics -No up-front investment into capital -Pay as you go -Alignment of capacity with demand Cloud Components 1. XaaS 2. Virtualization 3. Multitenancy 4. Business Model Cloud 146

5 1. XaaS Software as a Service (SaaS) Platform as a Service (PaaS) Infrastructure as a Service (IaaS) Desktop as a Service (DaaS) Employee as a Service (EaaS) Gaming as a Service (GaaS) X as a Service (XaaS) 147

6 PaaS Service Provider (SP) responsible for - Hosting software - Disaster recovery - Fail-over - Backup management 148

7 SaaS (e.g., Salesforce) Advantages - No up-front investment - Transparent IT cost - Fast implementation - Process complexity reduction - Procses mobility Disadvantages - Dependency on service provider - Slow data transfer rates - Reduced adaptability - Data and transaction risk 149

8 PaaS (e.g., Azure, App Engine) Advantages - Computing platform/solution stack - Facilitates deployment of applications - (.Net, JVM) Disadvantages - Lock-in 150

9 IaaS (e.g., EC2, S3) Advantages - Platform virtualization environment - Compute resources as a service - (VMs, Networks, Storage, etc.) Disadvantages - Risk/availability 151

10 2. Virtualization -Goal: - Enhance utilization of computing resources - Google server utilization ~ 60% Partial Virtualization Paravirtualization Full Virtualization Hardware-assisted Full Virtualization 152

11 Partial Virtualization Characteristics - Simulation of multiple instances of hardware - In particular: address spaces - To have independent address spaces for applications - VMs do not host entire OS s! - Fundamental foundation for every OS! 153

12 Paravirtualization Characteristics: - VM offers special API that can only be used by modified guest OS s - hypercalls to hyerpvisor - (e.g., Win4Lin9x, z/vm, LPARs) 154

13 Full Virtualization Characteristics - Virtual machine simulates enough hardware to run unmodified guest OS in isolation - Originated by IBM s CP-40, CP-67 in Virtual Box, Virtual Iron, Virtual PC, Hyper-V, VMWare ESX 155

14 Hypervisors/Virtual Machine Monitor (VMM) Type1 (Bare metal) - Run directly on host hardware Type2 (hosted) - Run on conventional operatings systems Products - Hyper-V, VMWare ESX(i), XenServer, KVM 156

15 Ring priviliges Windows XP: -Kernel Mode (Ring0) -User Mode (Ring3) 157

16 Ring privileges Privileges? Guest has no direct Access to hardware Hypervisors 158

17 Virtualization Performance 1. Ring deprivileging Running guest OS at ring higher 0 2. Virtualization of protected mode Binary translation Shadow Page Tables I/O device emulation 159

18 Binary translation -Rewrite certain instructions that would fail or behave differently when executed above ring 0 - Segment executable into basic blocks - Translate basic blocks to and run on hardware -Static - Translate into basic blocks without running executable - Difficult to find all basic blocks -Dynamic - Translate basic blocks as they are discovered while running executable 160

19 Shadow page tables - Duplicating Memory Management Unit (MMU) - Contain the guest-virtual to host-physical address mapping -Principle - Denying guest direct access to MMU by: - Trapping access atempts - Emulating them in software Skip intermediate translation! src: show/2480/10 161

20 Translation Lookaside Buffer (TLB) -Part of the MMU -Address translation is compute-intensive -TLB buffers logical to physical address translation And in Virtualization? src: wikipedia.org 162

21 Nested Paging (AMD), EPT (Intel) -Context switch (VMExit/VMEntry) very heavy! - Flushes TLB - VM-specific Address Space Identifier (ASID) TLB caches both: -Virtual memory (Guest) to physical memory (Guest) -Physical memory (Guest) to Physical memory (Hardware) Tag Perf. Boost up to 23% (AMD) src: show/2480/10 163

22 I/O device emulation -Unsupported devices on the guest must be emulated by a device emulator that runs in the host - USB, etc. 164

23 Popek & Goldberg Virtualization Requirements -Equivalence - VM running on VMM must achieve same behavior as native -Resource control - VMM must be in complete control of virtualized resources -Efficiency - Majority of instructions must be executed without VMM intervention X86 did not meet these requirements! 165

24 Hardware Assisted Full Virtualization (Hardware Assist) -Full virtualization using hardware capabilities - Intel VT-x, AMD V - Added to X86 in 2006 Ring -1 src: 166

25 Cloud Scheduling Cloud Optimization Problem: 1. Avoid wasting resources Through under-utilization 2. Avoid lengthy response times Through over-utilization 167

26 Cloud Scheduling Assumptions: - PM denotes a physical machine, n: {PM} - VM denotes a virtual machine, m: {VM} - VM PM: m 1 - It is desirable to: - Avoid under-utilization Have as many PMs online as necessary - Avoid unstable performance Have just as many VMs assigned to one PM as possible 168

27 Cloud Scheduling Cloud Frames - Number of PMs might change between frames as: - Number of VMs has changed - Problematic VMs require migration Requires reallocation of VMs and PMs S: Schedule S(m, n): m n S opt Resource allocation problem: NP-hard! (Vector Bin Packing Problem) 169

28 Cloud Scheduling Multiple Criteria Decision Analysis (MCDA) 1. Feasible In terms of number of migrations Number of migrations: {Migrations} Max 2. Computationally efficient In terms of terminates within reasonable amount of time Schedule compute time: t Compute Max FCOpt: Feasibility-ComputationalEfficiency Optimization FCOpt(t Compute Max, {Migrations} Max ): S S FCOpt (S(m, n) opt) FCOpt Fast-to-compute, feasible, and reasonably good configurations that do not over-utilize or under-utilize any PM 170

29 MCDA 1. Choosing a VM to migrate from the list of VMs that run on the problematic PM 2. Choosing a PM to migrate the chosen VM to 3. Migrating the chosen VM to the chosen PM 171

30 Cloud Scheduling Variations Decentral - Simple distributed method (SDM) - Migrate first VM on problematic PM to first available PM - Multiple Criteria Decision Analysis (MCDA) Central (requires arbiter) - First Fit (FF) - First Fit Decreasing (FFD) - Ordered FF (PM or VM size) 172

31 Cloud Scheduling Results 173

32 Cloud Scheduling Results 174

33 Azure Service Platform VMs: Windows Server 2008 R2 VMM: Windows Azure Management Infrastructure: App Fabric 175

34 The Azure Platform 1. Compute 1. Web role 2. Worker role 2. Storage 1. Table storage 2. Blob storage 3. Queue storage 3. Fabric 1. Services that facilitate VM allocation, fail-over, load balancing 176

35 Azure App Fabric -Access Control Service - Identify users and grant access -Service Bus - Connection via communication and messaging protocols -Caching - Distributed in-memory cache for Windows and SQL Azure -Integration - Several components of Biztalk -Composite App - API for developing and deploying composite apps. (mashups) 177

36 Azure App Fabric Azure Enterprise Service Bus 178

37 3. Multitenancy Definition: - Single instance of software runs on a server serving multiple clients (tenants) - Applications are able to virtually partition tenant data and logic -Multitenancy economies - Cost savings (per-tenant, on-demand, as-you-go) - Harder to develop due to higher complexity - Eased release management -Opposite of multi-instance architecture! - Each tenant runs its own instance 179

38 4. Cloud Business Models State of the Art: - RAM + CPU: per compute hour - HDD: per Gbyte/month - Network: per Gbyte in or out/month Pay as you go? Cloud Spot Markets: - Procure compute resources in auctions - (e.g., spotcloud.com) 180

39 Service Level Agreements (SLAs) -Part of a service contract -Measurable details: - MTBF - Availability - Throughput - Response time - etc. 181

40 Availability Level of Availability Downtime per year 99% 87.6h 99.9% 8.76h 99.99% 52.56m % 5.26m % 31.56s Every additional 9 quadrupels your IT cost! 182

41 Balancing 9s with cost Industry IT Service Cost/min IT Cost/y Financial Financial Brokerage operations Credit card authorization $107,500 $58,050,000 $43,333 $23,399,820 Retail Home shopping $1,883 $1,016,820 Retail Catalog sales $1,500 $810,000 Transportation Airline reservation $1,483 $800,820 Finance ATM fees $241 $130,140 How to balance? Bachelor/Master Thesis? 183

42 Literature - m - 3/papers/002.pdf /cloud2010.pdf?sequence=1 184

Cloud Computing #6 - Virtualization

Cloud Computing #6 - Virtualization Cloud Computing #6 - Virtualization Main source: Smith & Nair, Virtual Machines, Morgan Kaufmann, 2005 Today What do we mean by virtualization? Why is it important to cloud? What is the penalty? Current

More information

Full and Para Virtualization

Full and Para Virtualization Full and Para Virtualization Dr. Sanjay P. Ahuja, Ph.D. 2010-14 FIS Distinguished Professor of Computer Science School of Computing, UNF x86 Hardware Virtualization The x86 architecture offers four levels

More information

Virtualization. Types of Interfaces

Virtualization. Types of Interfaces Virtualization Virtualization: extend or replace an existing interface to mimic the behavior of another system. Introduced in 1970s: run legacy software on newer mainframe hardware Handle platform diversity

More information

COS 318: Operating Systems. Virtual Machine Monitors

COS 318: Operating Systems. Virtual Machine Monitors COS 318: Operating Systems Virtual Machine Monitors Kai Li and Andy Bavier Computer Science Department Princeton University http://www.cs.princeton.edu/courses/archive/fall13/cos318/ Introduction u Have

More information

Virtualization. Dr. Yingwu Zhu

Virtualization. Dr. Yingwu Zhu Virtualization Dr. Yingwu Zhu What is virtualization? Virtualization allows one computer to do the job of multiple computers. Virtual environments let one computer host multiple operating systems at the

More information

Uses for Virtual Machines. Virtual Machines. There are several uses for virtual machines:

Uses for Virtual Machines. Virtual Machines. There are several uses for virtual machines: Virtual Machines Uses for Virtual Machines Virtual machine technology, often just called virtualization, makes one computer behave as several computers by sharing the resources of a single computer between

More information

Virtual Machines. COMP 3361: Operating Systems I Winter 2015 http://www.cs.du.edu/3361

Virtual Machines. COMP 3361: Operating Systems I Winter 2015 http://www.cs.du.edu/3361 s COMP 3361: Operating Systems I Winter 2015 http://www.cs.du.edu/3361 1 Virtualization! Create illusion of multiple machines on the same physical hardware! Single computer hosts multiple virtual machines

More information

CS 695 Topics in Virtualization and Cloud Computing. More Introduction + Processor Virtualization

CS 695 Topics in Virtualization and Cloud Computing. More Introduction + Processor Virtualization CS 695 Topics in Virtualization and Cloud Computing More Introduction + Processor Virtualization (source for all images: Virtual Machines: Versatile Platforms for Systems and Processes Morgan Kaufmann;

More information

Virtualization. Jukka K. Nurminen 23.9.2015

Virtualization. Jukka K. Nurminen 23.9.2015 Virtualization Jukka K. Nurminen 23.9.2015 Virtualization Virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms,

More information

Virtualization. Jia Rao Assistant Professor in CS http://cs.uccs.edu/~jrao/

Virtualization. Jia Rao Assistant Professor in CS http://cs.uccs.edu/~jrao/ Virtualization Jia Rao Assistant Professor in CS http://cs.uccs.edu/~jrao/ What is Virtualization? Virtualization is the simulation of the software and/ or hardware upon which other software runs. This

More information

Virtualization Technology. Zhiming Shen

Virtualization Technology. Zhiming Shen Virtualization Technology Zhiming Shen Virtualization: rejuvenation 1960 s: first track of virtualization Time and resource sharing on expensive mainframes IBM VM/370 Late 1970 s and early 1980 s: became

More information

Basics in Energy Information (& Communication) Systems Virtualization / Virtual Machines

Basics in Energy Information (& Communication) Systems Virtualization / Virtual Machines Basics in Energy Information (& Communication) Systems Virtualization / Virtual Machines Dr. Johann Pohany, Virtualization Virtualization deals with extending or replacing an existing interface so as to

More information

Virtualization. Pradipta De pradipta.de@sunykorea.ac.kr

Virtualization. Pradipta De pradipta.de@sunykorea.ac.kr Virtualization Pradipta De pradipta.de@sunykorea.ac.kr Today s Topic Virtualization Basics System Virtualization Techniques CSE506: Ext Filesystem 2 Virtualization? A virtual machine (VM) is an emulation

More information

9/26/2011. What is Virtualization? What are the different types of virtualization.

9/26/2011. What is Virtualization? What are the different types of virtualization. CSE 501 Monday, September 26, 2011 Kevin Cleary kpcleary@buffalo.edu What is Virtualization? What are the different types of virtualization. Practical Uses Popular virtualization products Demo Question,

More information

CPET 581 Cloud Computing: Technologies and Enterprise IT Strategies. Virtualization of Clusters and Data Centers

CPET 581 Cloud Computing: Technologies and Enterprise IT Strategies. Virtualization of Clusters and Data Centers CPET 581 Cloud Computing: Technologies and Enterprise IT Strategies Lecture 4 Virtualization of Clusters and Data Centers Text Book: Distributed and Cloud Computing, by K. Hwang, G C. Fox, and J.J. Dongarra,

More information

Virtualization and the U2 Databases

Virtualization and the U2 Databases Virtualization and the U2 Databases Brian Kupzyk Senior Technical Support Engineer for Rocket U2 Nik Kesic Lead Technical Support for Rocket U2 Opening Procedure Orange arrow allows you to manipulate the

More information

Virtual Machines. Virtualization

Virtual Machines. Virtualization Virtual Machines Marie Roch Tanenbaum 8.3 contains slides from: Tanenbaum 3 rd ed. 2008 1 Virtualization Started with the IBM System/360 in the 1960s Basic concept simulate multiple copies of the underlying

More information

Anh Quach, Matthew Rajman, Bienvenido Rodriguez, Brian Rodriguez, Michael Roefs, Ahmed Shaikh

Anh Quach, Matthew Rajman, Bienvenido Rodriguez, Brian Rodriguez, Michael Roefs, Ahmed Shaikh Anh Quach, Matthew Rajman, Bienvenido Rodriguez, Brian Rodriguez, Michael Roefs, Ahmed Shaikh Introduction History, Advantages, Common Uses OS-Level Virtualization Hypervisors Type 1 vs. type 2 hypervisors

More information

Virtual Machine Monitors. Dr. Marc E. Fiuczynski Research Scholar Princeton University

Virtual Machine Monitors. Dr. Marc E. Fiuczynski Research Scholar Princeton University Virtual Machine Monitors Dr. Marc E. Fiuczynski Research Scholar Princeton University Introduction Have been around since 1960 s on mainframes used for multitasking Good example VM/370 Have resurfaced

More information

Chapter 16: Virtual Machines. Operating System Concepts 9 th Edition

Chapter 16: Virtual Machines. Operating System Concepts 9 th Edition Chapter 16: Virtual Machines Silberschatz, Galvin and Gagne 2013 Chapter 16: Virtual Machines Overview History Benefits and Features Building Blocks Types of Virtual Machines and Their Implementations

More information

Understanding Full Virtualization, Paravirtualization, and Hardware Assist. Introduction...1 Overview of x86 Virtualization...2 CPU Virtualization...

Understanding Full Virtualization, Paravirtualization, and Hardware Assist. Introduction...1 Overview of x86 Virtualization...2 CPU Virtualization... Contents Introduction...1 Overview of x86 Virtualization...2 CPU Virtualization...3 The Challenges of x86 Hardware Virtualization...3 Technique 1 - Full Virtualization using Binary Translation...4 Technique

More information

Networking for Caribbean Development

Networking for Caribbean Development Networking for Caribbean Development BELIZE NOV 2 NOV 6, 2015 w w w. c a r i b n o g. o r g Virtualization: Architectural Considerations and Implementation Options Virtualization Virtualization is the

More information

Data Centers and Cloud Computing

Data Centers and Cloud Computing Data Centers and Cloud Computing CS377 Guest Lecture Tian Guo 1 Data Centers and Cloud Computing Intro. to Data centers Virtualization Basics Intro. to Cloud Computing Case Study: Amazon EC2 2 Data Centers

More information

The Xen of Virtualization

The Xen of Virtualization The Xen of Virtualization Assignment for CLC-MIRI Amin Khan Universitat Politècnica de Catalunya March 4, 2013 Amin Khan (UPC) Xen Hypervisor March 4, 2013 1 / 19 Outline 1 Introduction 2 Architecture

More information

Intro to Virtualization

Intro to Virtualization Cloud@Ceid Seminars Intro to Virtualization Christos Alexakos Computer Engineer, MSc, PhD C. Sysadmin at Pattern Recognition Lab 1 st Seminar 19/3/2014 Contents What is virtualization How it works Hypervisor

More information

Compromise-as-a-Service

Compromise-as-a-Service ERNW GmbH Carl-Bosch-Str. 4 D-69115 Heidelberg 3/31/14 Compromise-as-a-Service Our PleAZURE Felix Wilhelm & Matthias Luft {fwilhelm, mluft}@ernw.de ERNW GmbH Carl-Bosch-Str. 4 D-69115 Heidelberg Agenda

More information

Distributed and Cloud Computing

Distributed and Cloud Computing Distributed and Cloud Computing K. Hwang, G. Fox and J. Dongarra Chapter 3: Virtual Machines and Virtualization of Clusters and datacenters Adapted from Kai Hwang University of Southern California March

More information

x86 Virtualization Hardware Support Pla$orm Virtualiza.on

x86 Virtualization Hardware Support Pla$orm Virtualiza.on x86 Virtualization Hardware Support Pla$orm Virtualiza.on Hide the physical characteris.cs of computer resources from the applica.ons Not a new idea: IBM s CP- 40 1967, CP/CMS, VM Full Virtualiza.on Simulate

More information

Virtualization. ! Physical Hardware. ! Software. ! Isolation. ! Software Abstraction. ! Encapsulation. ! Virtualization Layer. !

Virtualization. ! Physical Hardware. ! Software. ! Isolation. ! Software Abstraction. ! Encapsulation. ! Virtualization Layer. ! Starting Point: A Physical Machine Virtualization Based on materials from: Introduction to Virtual Machines by Carl Waldspurger Understanding Intel Virtualization Technology (VT) by N. B. Sahgal and D.

More information

Introduction to Virtual Machines

Introduction to Virtual Machines Introduction to Virtual Machines Carl Waldspurger (SB SM 89, PhD 95), VMware R&D 2010 VMware Inc. All rights reserved Overview Virtualization and VMs Processor Virtualization Memory Virtualization I/O

More information

Clouds Under the Covers. Elgazzar - CISC 886 - Fall 2014 1

Clouds Under the Covers. Elgazzar - CISC 886 - Fall 2014 1 Clouds Under the Covers KHALID ELGAZZAR GOODWIN 531 ELGAZZAR@CS.QUEENSU.CA Elgazzar - CISC 886 - Fall 2014 1 References Understanding Full Virtualization, Paravirtualization, and Hardware Assist White

More information

VMware and CPU Virtualization Technology. Jack Lo Sr. Director, R&D

VMware and CPU Virtualization Technology. Jack Lo Sr. Director, R&D ware and CPU Virtualization Technology Jack Lo Sr. Director, R&D This presentation may contain ware confidential information. Copyright 2005 ware, Inc. All rights reserved. All other marks and names mentioned

More information

Outline. Outline. Why virtualization? Why not virtualize? Today s data center. Cloud computing. Virtual resource pool

Outline. Outline. Why virtualization? Why not virtualize? Today s data center. Cloud computing. Virtual resource pool Outline CS 6V81-05: System Security and Malicious Code Analysis Overview of System ization: The most powerful platform for program analysis and system security Zhiqiang Lin Department of Computer Science

More information

Enabling Technologies for Distributed and Cloud Computing

Enabling Technologies for Distributed and Cloud Computing Enabling Technologies for Distributed and Cloud Computing Dr. Sanjay P. Ahuja, Ph.D. 2010-14 FIS Distinguished Professor of Computer Science School of Computing, UNF Multi-core CPUs and Multithreading

More information

Hypervisors. Introduction. Introduction. Introduction. Introduction. Introduction. Credits:

Hypervisors. Introduction. Introduction. Introduction. Introduction. Introduction. Credits: Hypervisors Credits: P. Chaganti Xen Virtualization A practical handbook D. Chisnall The definitive guide to Xen Hypervisor G. Kesden Lect. 25 CS 15-440 G. Heiser UNSW/NICTA/OKL Virtualization is a technique

More information

Intel s Virtualization Extensions (VT-x) So you want to build a hypervisor?

Intel s Virtualization Extensions (VT-x) So you want to build a hypervisor? Intel s Virtualization Extensions (VT-x) So you want to build a hypervisor? Mr. Jacob Torrey February 26, 2014 Dartmouth College 153 Brooks Road, Rome, NY 315.336.3306 http://ainfosec.com @JacobTorrey

More information

Cloud Computing CS 15-319

Cloud Computing CS 15-319 Cloud Computing CS 15-319 Virtualization Case Studies : Xen and VMware Lecture 20 Majd F. Sakr, Mohammad Hammoud and Suhail Rehman 1 Today Last session Resource Virtualization Today s session Virtualization

More information

DISTRIBUTED COMPUTER SYSTEMS CLOUD COMPUTING INTRODUCTION

DISTRIBUTED COMPUTER SYSTEMS CLOUD COMPUTING INTRODUCTION DISTRIBUTED COMPUTER SYSTEMS CLOUD COMPUTING INTRODUCTION Dr. Taieb Znati Computer Science Department University of Pittsburgh Fall 2014 Thoughts on Cloud Computing A way to increase capacity or add capabilities

More information

Virtualization Approaches in Cloud Computing

Virtualization Approaches in Cloud Computing Virtualization Approaches in Cloud Computing K C Gouda #1, Anurag Patro *2, Dines Dwivedi *3, Nagaraj Bhat #4 # CSIR Centre for Mathematical Modeling and Computer Simulation (C-MMACS) Wind Tunnel Road,

More information

Enabling Technologies for Distributed Computing

Enabling Technologies for Distributed Computing Enabling Technologies for Distributed Computing Dr. Sanjay P. Ahuja, Ph.D. Fidelity National Financial Distinguished Professor of CIS School of Computing, UNF Multi-core CPUs and Multithreading Technologies

More information

3.1 IaaS Definition. IaaS: Infrastructure as a Service

3.1 IaaS Definition. IaaS: Infrastructure as a Service 1 3.1 IaaS Definition IaaS: Infrastructure as a Service Through the internet, provide IT server, storage, computing power and other infrastructure capacity to the end users and the service fee based on

More information

Virtual machines and operating systems

Virtual machines and operating systems V i r t u a l m a c h i n e s a n d o p e r a t i n g s y s t e m s Virtual machines and operating systems Krzysztof Lichota lichota@mimuw.edu.pl A g e n d a Virtual machines and operating systems interactions

More information

Intel Virtualization Technology Overview Yu Ke

Intel Virtualization Technology Overview Yu Ke Intel Virtualization Technology Overview Yu Ke SSG System Software Division Agenda Virtualization Overview Intel Virtualization Technology 2 What is Virtualization VM 0 VM 1 VM n Virtual Machines (VMs)

More information

COM 444 Cloud Computing

COM 444 Cloud Computing COM 444 Cloud Computing Lec 3: Virtual Machines and Virtualization of Clusters and Datacenters Prof. Dr. Halûk Gümüşkaya haluk.gumuskaya@gediz.edu.tr haluk@gumuskaya.com http://www.gumuskaya.com Virtual

More information

Expert Reference Series of White Papers. vterminology: A Guide to Key Virtualization Terminology

Expert Reference Series of White Papers. vterminology: A Guide to Key Virtualization Terminology Expert Reference Series of White Papers vterminology: A Guide to Key Virtualization Terminology 1-800-COURSES www.globalknowledge.com vterminology: A Guide to Key Virtualization Terminology John A. Davis,

More information

Chapter 5 Cloud Resource Virtualization

Chapter 5 Cloud Resource Virtualization Chapter 5 Cloud Resource Virtualization Contents Virtualization. Layering and virtualization. Virtual machine monitor. Virtual machine. Performance and security isolation. Architectural support for virtualization.

More information

COS 318: Operating Systems. Virtual Machine Monitors

COS 318: Operating Systems. Virtual Machine Monitors COS 318: Operating Systems Virtual Machine Monitors Andy Bavier Computer Science Department Princeton University http://www.cs.princeton.edu/courses/archive/fall10/cos318/ Introduction Have been around

More information

CS 695 Topics in Virtualization and Cloud Computing. Introduction

CS 695 Topics in Virtualization and Cloud Computing. Introduction CS 695 Topics in Virtualization and Cloud Computing Introduction This class What does virtualization and cloud computing mean? 2 Cloud Computing The in-vogue term Everyone including his/her dog want something

More information

Virtualization Technologies (ENCS 691K Chapter 3)

Virtualization Technologies (ENCS 691K Chapter 3) Virtualization Technologies (ENCS 691K Chapter 3) Roch Glitho, PhD Associate Professor and Canada Research Chair My URL - http://users.encs.concordia.ca/~glitho/ The Key Technologies on Which Cloud Computing

More information

Nested Virtualization

Nested Virtualization Nested Virtualization Dongxiao Xu, Xiantao Zhang, Yang Zhang May 9, 2013 Agenda Nested Virtualization Overview Dive into Nested Virtualization Details Nested CPU Virtualization Nested MMU Virtualization

More information

CS 695 Topics in Virtualization and Cloud Computing and Storage Systems. Introduction

CS 695 Topics in Virtualization and Cloud Computing and Storage Systems. Introduction CS 695 Topics in Virtualization and Cloud Computing and Storage Systems Introduction Hot or not? source: Gartner Hype Cycle for Emerging Technologies, 2014 2 Source: http://geekandpoke.typepad.com/ 3 Cloud

More information

The Art of Virtualization with Free Software

The Art of Virtualization with Free Software Master on Free Software 2009/2010 {mvidal,jfcastro}@libresoft.es GSyC/Libresoft URJC April 24th, 2010 (cc) 2010. Some rights reserved. This work is licensed under a Creative Commons Attribution-Share Alike

More information

Virtualization Technologies

Virtualization Technologies 12 January 2010 Virtualization Technologies Alex Landau (lalex@il.ibm.com) IBM Haifa Research Lab What is virtualization? Virtualization is way to run multiple operating systems and user applications on

More information

WHITE PAPER Mainstreaming Server Virtualization: The Intel Approach

WHITE PAPER Mainstreaming Server Virtualization: The Intel Approach WHITE PAPER Mainstreaming Server Virtualization: The Intel Approach Sponsored by: Intel John Humphreys June 2006 Tim Grieser IDC OPINION Global Headquarters: 5 Speen Street Framingham, MA 01701 USA P.508.872.8200

More information

Virtualization with Windows

Virtualization with Windows Virtualization with Windows at CERN Juraj Sucik, Emmanuel Ormancey Internet Services Group Agenda Current status of IT-IS group virtualization service Server Self Service New virtualization features in

More information

Definitions. Hardware Full virtualization Para virtualization Hosted hypervisor Type I hypervisor. Native (bare metal) hypervisor Type II hypervisor

Definitions. Hardware Full virtualization Para virtualization Hosted hypervisor Type I hypervisor. Native (bare metal) hypervisor Type II hypervisor Virtualization Objectives Definitions Why Problems Versions Virtualization vs Cloud Creating a New Virtual Machine Working with a Virtual Machine Virtual Machine Settings Virtual Machine Snapshots Definitions

More information

Cloud^H^H^H^H^H Virtualization Technology. Andrew Jones (drjones@redhat.com) May 2011

Cloud^H^H^H^H^H Virtualization Technology. Andrew Jones (drjones@redhat.com) May 2011 Cloud^H^H^H^H^H Virtualization Technology Andrew Jones (drjones@redhat.com) May 2011 Outline Promise to not use the word Cloud again...but still give a couple use cases for Virtualization Emulation it's

More information

Enterprise-Class Virtualization with Open Source Technologies

Enterprise-Class Virtualization with Open Source Technologies Enterprise-Class Virtualization with Open Source Technologies Alex Vasilevsky CTO & Founder Virtual Iron Software June 14, 2006 Virtualization Overview Traditional x86 Architecture Each server runs single

More information

Distributed Systems. Virtualization. Paul Krzyzanowski pxk@cs.rutgers.edu

Distributed Systems. Virtualization. Paul Krzyzanowski pxk@cs.rutgers.edu Distributed Systems Virtualization Paul Krzyzanowski pxk@cs.rutgers.edu Except as otherwise noted, the content of this presentation is licensed under the Creative Commons Attribution 2.5 License. Virtualization

More information

Virtualization. P. A. Wilsey. The text highlighted in green in these slides contain external hyperlinks. 1 / 16

Virtualization. P. A. Wilsey. The text highlighted in green in these slides contain external hyperlinks. 1 / 16 Virtualization P. A. Wilsey The text highlighted in green in these slides contain external hyperlinks. 1 / 16 Conventional System Viewed as Layers This illustration is a common presentation of the application/operating

More information

Virtualization. Explain how today s virtualization movement is actually a reinvention

Virtualization. Explain how today s virtualization movement is actually a reinvention Virtualization Learning Objectives Explain how today s virtualization movement is actually a reinvention of the past. Explain how virtualization works. Discuss the technical challenges to virtualization.

More information

Introduction to Engineering Using Robotics Experiments Lecture 18 Cloud Computing

Introduction to Engineering Using Robotics Experiments Lecture 18 Cloud Computing Introduction to Engineering Using Robotics Experiments Lecture 18 Cloud Computing Yinong Chen 2 Big Data Big Data Technologies Cloud Computing Service and Web-Based Computing Applications Industry Control

More information

Chapter 2 Addendum (More on Virtualization)

Chapter 2 Addendum (More on Virtualization) Chapter 2 Addendum (More on Virtualization) Roch Glitho, PhD Associate Professor and Canada Research Chair My URL - http://users.encs.concordia.ca/~glitho/ More on Systems Virtualization Type I (bare metal)

More information

Lecture 2 Cloud Computing & Virtualization. Cloud Application Development (SE808, School of Software, Sun Yat-Sen University) Yabo (Arber) Xu

Lecture 2 Cloud Computing & Virtualization. Cloud Application Development (SE808, School of Software, Sun Yat-Sen University) Yabo (Arber) Xu Lecture 2 Cloud Computing & Virtualization Cloud Application Development (SE808, School of Software, Sun Yat-Sen University) Yabo (Arber) Xu Outline Introduction to Virtualization The Major Approaches

More information

Virtualization. 2010 VMware Inc. All rights reserved

Virtualization. 2010 VMware Inc. All rights reserved Virtualization Based on materials from: Introduction to Virtual Machines by Carl Waldspurger Understanding Intel Virtualization Technology (VT) by N. B. Sahgal and D. Rodgers Intel Virtualization Technology

More information

Cloud Courses Description

Cloud Courses Description Courses Description 101: Fundamental Computing and Architecture Computing Concepts and Models. Data center architecture. Fundamental Architecture. Virtualization Basics. platforms: IaaS, PaaS, SaaS. deployment

More information

IOS110. Virtualization 5/27/2014 1

IOS110. Virtualization 5/27/2014 1 IOS110 Virtualization 5/27/2014 1 Agenda What is Virtualization? Types of Virtualization. Advantages and Disadvantages. Virtualization software Hyper V What is Virtualization? Virtualization Refers to

More information

VMware Server 2.0 Essentials. Virtualization Deployment and Management

VMware Server 2.0 Essentials. Virtualization Deployment and Management VMware Server 2.0 Essentials Virtualization Deployment and Management . This PDF is provided for personal use only. Unauthorized use, reproduction and/or distribution strictly prohibited. All rights reserved.

More information

Virtual Machines. www.viplavkambli.com

Virtual Machines. www.viplavkambli.com 1 Virtual Machines A virtual machine (VM) is a "completely isolated guest operating system installation within a normal host operating system". Modern virtual machines are implemented with either software

More information

Open Source Cloud Computing: Characteristics and an Overview

Open Source Cloud Computing: Characteristics and an Overview Open Source Cloud Computing: Characteristics and an Overview Naylor G. Bachiega 1, Henrique P. Martins 1, Roberta Spolon 1, Marcos A. Cavenaghi 1, Renata S. Lobato 2, Aleardo Manacero 2 1 Computer Science

More information

OS Virtualization. CSC 456 Final Presentation Brandon D. Shroyer

OS Virtualization. CSC 456 Final Presentation Brandon D. Shroyer OS Virtualization CSC 456 Final Presentation Brandon D. Shroyer Introduction Virtualization: Providing an interface to software that maps to some underlying system. A one-to-one mapping between a guest

More information

Hypervisors and Virtual Machines

Hypervisors and Virtual Machines Hypervisors and Virtual Machines Implementation Insights on the x86 Architecture DON REVELLE Don is a performance engineer and Linux systems/kernel programmer, specializing in high-volume UNIX, Web, virtualization,

More information

PERFORMANCE ANALYSIS OF KERNEL-BASED VIRTUAL MACHINE

PERFORMANCE ANALYSIS OF KERNEL-BASED VIRTUAL MACHINE PERFORMANCE ANALYSIS OF KERNEL-BASED VIRTUAL MACHINE Sudha M 1, Harish G M 2, Nandan A 3, Usha J 4 1 Department of MCA, R V College of Engineering, Bangalore : 560059, India sudha.mooki@gmail.com 2 Department

More information

RPM Brotherhood: KVM VIRTUALIZATION TECHNOLOGY

RPM Brotherhood: KVM VIRTUALIZATION TECHNOLOGY RPM Brotherhood: KVM VIRTUALIZATION TECHNOLOGY Syamsul Anuar Abd Nasir Fedora Ambassador Malaysia 1 ABOUT ME Technical Consultant for Warix Technologies - www.warix.my Warix is a Red Hat partner Offers

More information

Virtualization. P. A. Wilsey. The text highlighted in green in these slides contain external hyperlinks. 1 / 16

Virtualization. P. A. Wilsey. The text highlighted in green in these slides contain external hyperlinks. 1 / 16 1 / 16 Virtualization P. A. Wilsey The text highlighted in green in these slides contain external hyperlinks. 2 / 16 Conventional System Viewed as Layers This illustration is a common presentation of the

More information

Virtualization Overview. Yao-Min Chen

Virtualization Overview. Yao-Min Chen Virtualization Overview Yao-Min Chen The new look of computing 10/15/2010 Virtualization Overview 2 Outline Intro to Virtualization (V14n) V14n and Cloud Computing V14n Technologies 10/15/2010 Virtualization

More information

Knut Omang Ifi/Oracle 19 Oct, 2015

Knut Omang Ifi/Oracle 19 Oct, 2015 Software and hardware support for Network Virtualization Knut Omang Ifi/Oracle 19 Oct, 2015 Motivation Goal: Introduction to challenges in providing fast networking to virtual machines Prerequisites: What

More information

Virtualization. Clothing the Wolf in Wool. Wednesday, April 17, 13

Virtualization. Clothing the Wolf in Wool. Wednesday, April 17, 13 Virtualization Clothing the Wolf in Wool Virtual Machines Began in 1960s with IBM and MIT Project MAC Also called open shop operating systems Present user with the view of a bare machine Execute most instructions

More information

Hypervisor Software and Virtual Machines. Professor Howard Burpee SMCC Computer Technology Dept.

Hypervisor Software and Virtual Machines. Professor Howard Burpee SMCC Computer Technology Dept. Hypervisor Software and Virtual Machines Learning Objectives Understand the common features of today s desktop virtualization products Select and implement a desktop virtualization option on a Linux, Mac,

More information

Enabling Intel Virtualization Technology Features and Benefits

Enabling Intel Virtualization Technology Features and Benefits WHITE PAPER Intel Virtualization Technology Enterprise Server Enabling Intel Virtualization Technology Features and Benefits Maximizing the benefits of virtualization with Intel s new CPUs and chipsets

More information

CSE 501 Monday, September 09, 2013 Kevin Cleary kpcleary@buffalo.edu

CSE 501 Monday, September 09, 2013 Kevin Cleary kpcleary@buffalo.edu CSE 501 Monday, September 09, 2013 Kevin Cleary kpcleary@buffalo.edu What is Virtualization? Practical Uses What can be virtualized Popular virtualization products Demo Question, answer, discussion Can

More information

Virtualization. Michael Tsai 2015/06/08

Virtualization. Michael Tsai 2015/06/08 Virtualization Michael Tsai 2015/06/08 What is virtualization? Let s first look at a video from VMware http://bcove.me/x9zhalcl Problems? Low utilization Different needs DNS DHCP Web mail 5% 5% 15% 8%

More information

GUEST OPERATING SYSTEM BASED PERFORMANCE COMPARISON OF VMWARE AND XEN HYPERVISOR

GUEST OPERATING SYSTEM BASED PERFORMANCE COMPARISON OF VMWARE AND XEN HYPERVISOR GUEST OPERATING SYSTEM BASED PERFORMANCE COMPARISON OF VMWARE AND XEN HYPERVISOR ANKIT KUMAR, SAVITA SHIWANI 1 M. Tech Scholar, Software Engineering, Suresh Gyan Vihar University, Rajasthan, India, Email:

More information

Best Practices for Virtualised SharePoint

Best Practices for Virtualised SharePoint Best Practices for Virtualised SharePoint Brendan Law Blaw@td.com.au @FlamerNZ Flamer.co.nz/spag/ Nathan Mercer Nathan.Mercer@microsoft.com @NathanM blogs.technet.com/nmercer/ Agenda Why Virtualise? Hardware

More information

Microkernels, virtualization, exokernels. Tutorial 1 CSC469

Microkernels, virtualization, exokernels. Tutorial 1 CSC469 Microkernels, virtualization, exokernels Tutorial 1 CSC469 Monolithic kernel vs Microkernel Monolithic OS kernel Application VFS System call User mode What was the main idea? What were the problems? IPC,

More information

Performance Evaluation of Virtualization with Cloud Computing

Performance Evaluation of Virtualization with Cloud Computing Performance Evaluation of Virtualization with Cloud Computing Christophe PELLETINGEAS 07013760 Submitted in partial fulfilment of the requirements of Edinburgh Napier University for the Degree of MSc Advanced

More information

Virtualization and Disaster Recovery

Virtualization and Disaster Recovery Virtualization and Disaster Recovery Ray Trygstad Director of Information Technology, Associate Director, Information Technology & Management Degrees Illinois Institute of Technology NetSecure 09 March

More information

Development of Type-2 Hypervisor for MIPS64 Based Systems

Development of Type-2 Hypervisor for MIPS64 Based Systems Development of Type-2 Hypervisor for MIPS64 Based Systems High Performance Computing and Networking Lab Al-Khwarizmi Institute of Computer Science University of Engineering & Technology Lahore Pakistan

More information

System Virtual Machines

System Virtual Machines System Virtual Machines Introduction Key concepts Resource virtualization processors memory I/O devices Performance issues Applications 1 Introduction System virtual machine capable of supporting multiple

More information

KVM: A Hypervisor for All Seasons. Avi Kivity avi@qumranet.com

KVM: A Hypervisor for All Seasons. Avi Kivity avi@qumranet.com KVM: A Hypervisor for All Seasons Avi Kivity avi@qumranet.com November 2007 Virtualization Simulation of computer system in software Components Processor: register state, instructions, exceptions Memory

More information

Virtualization for Cloud Computing

Virtualization for Cloud Computing Virtualization for Cloud Computing Dr. Sanjay P. Ahuja, Ph.D. 2010-14 FIS Distinguished Professor of Computer Science School of Computing, UNF CLOUD COMPUTING On demand provision of computational resources

More information

Server and Storage Virtualization. Virtualization. Overview. 5 Reasons to Virtualize

Server and Storage Virtualization. Virtualization. Overview. 5 Reasons to Virtualize Server and Storage Virtualization. Overview Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu These slides and audio/video recordings of this class lecture are at:

More information

A Unified View of Virtual Machines

A Unified View of Virtual Machines A Unified View of Virtual Machines First ACM/USENIX Conference on Virtual Execution Environments J. E. Smith June 2005 Introduction Why are virtual machines interesting? They allow transcending of interfaces

More information

Hardware Based Virtualization Technologies. Elsie Wahlig elsie.wahlig@amd.com Platform Software Architect

Hardware Based Virtualization Technologies. Elsie Wahlig elsie.wahlig@amd.com Platform Software Architect Hardware Based Virtualization Technologies Elsie Wahlig elsie.wahlig@amd.com Platform Software Architect Outline What is Virtualization? Evolution of Virtualization AMD Virtualization AMD s IO Virtualization

More information

Running vtserver in a Virtual Machine Environment. Technical Note. 2015 by AVTware

Running vtserver in a Virtual Machine Environment. Technical Note. 2015 by AVTware Running vtserver in a Virtual Machine Environment Technical Note 2015 by AVTware Table of Contents 1. Scope... 3 1.1. Introduction... 3 2. General Virtual Machine Considerations... 4 2.1. The Virtualization

More information

Architecture of the Kernel-based Virtual Machine (KVM)

Architecture of the Kernel-based Virtual Machine (KVM) Corporate Technology Architecture of the Kernel-based Virtual Machine (KVM) Jan Kiszka, Siemens AG, CT T DE IT 1 Corporate Competence Center Embedded Linux jan.kiszka@siemens.com Copyright Siemens AG 2010.

More information

Basics of Virtualisation

Basics of Virtualisation Basics of Virtualisation Volker Büge Institut für Experimentelle Kernphysik Universität Karlsruhe Die Kooperation von The x86 Architecture Why do we need virtualisation? x86 based operating systems are

More information

Performance Management for Cloudbased STC 2012

Performance Management for Cloudbased STC 2012 Performance Management for Cloudbased Applications STC 2012 1 Agenda Context Problem Statement Cloud Architecture Need for Performance in Cloud Performance Challenges in Cloud Generic IaaS / PaaS / SaaS

More information

SUSE Linux Enterprise 10 SP2: Virtualization Technology Support

SUSE Linux Enterprise 10 SP2: Virtualization Technology Support Technical White Paper LINUX OPERATING SYSTEMS www.novell.com SUSE Linux Enterprise 10 SP2: Virtualization Technology Support Content and modifications. The contents of this document are not part of the

More information

Virtual Servers. Virtual machines. Virtualization. Design of IBM s VM. Virtual machine systems can give everyone the OS (and hardware) that they want.

Virtual Servers. Virtual machines. Virtualization. Design of IBM s VM. Virtual machine systems can give everyone the OS (and hardware) that they want. Virtual machines Virtual machine systems can give everyone the OS (and hardware) that they want. IBM s VM provided an exact copy of the hardware to the user. Virtual Servers Virtual machines are very widespread.

More information