Private cloud server virtualization


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Virtualization products partition physical servers in multiple virtual machines. Each virtual machine represents a complete system, with processors, memory, networking, storage and BIOS.

Multiple virtual machines can share physical resources and run side by side on the same server.

Operating systems and applications can run unmodified in virtual machines.

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  • Pierre-Juan Labeyrie
  • Private cloud server virtualization

    1. 1. {
    2. 2. Growing requirements of processing: proliferation of servers, demanding more energy, cooling, space
    3. 3.  WHAT IS IT ? Virtualization is a software abstraction of computer (hardware) resources.
    4. 4.  Virtualization products partition physical servers in multiple virtual machines. Each virtual machine represents a complete system, with processors, memory, networking, storage and BIOS. Multiple virtual machines can share physical resources and run side by side on the same server. Operating systems and applications can run unmodified in virtual machines.
    5. 5. HOW CAN IT BE USED WITHIN AN ORGANIZATION FOR ITS BUSINESS PROCESSES ? By consolidation of servers, isolation of processes, disaster recovery, new software testing.  Savings in costs, increased reliability and availability, more efficient usage of hardware resources.
    6. 6. WHAT WOULD BE THE ADVANTAGES AND DISADVANTAGES OF VIRTUALIZATION ? Advantages: #1 Decreases power, cooling, floor space and infrastructure. #2 Simplifies disaster recovery and business continuity requirements. #3 Increases server utilization from the typical averages of 5-15% to 60-80%. #4 Faster deployment of information technology resources reduces time to market. #5 Lower operational costs associated with reduced resource management and administration. #6 Improves application performance by dynamically adapting storage and server resources to meet peek usage cycles. #7 Aligns application data with the storage infrastructure to match application quality of service requirements and lower cost per gigabyte. #8 Improves protection and recovery of critical business data. #9 Easier to secure and comply with regulatory requirements such as SOX, HIPPA and eDiscovery. #10 Nearly 60 percent of Fortune 500 companies are implementing virtualization in their data centers, and another 30 percent are developing plans to do so. This means a growing available pool of qualified professionals.
    7. 7. Disadvantages #1 Licensing costs. #2 Vulnerable to server failure. #3 Compromise of virtualized hosts will affect guest machines. #4 Additional guest servers will require their own administration measures. #5 Initial cost can be high – renewal of associated infrastructure must be added (newest processors, storage). Personal Note : the Cons part wont have to be presented in such a way, it is only used as a way to anticipate potential aversions coming from some local IT specialists
    8. 8. Once an organization realizes the advantagesof going into virtualization, severalconsiderations are to be taken: Strategy (replace, expand) What systems to virtualize. Operating systems involved. Hardware platforms. Administrative Issues.
    9. 9.  Hardware reuse, replacement. Licensing issues. Legacy software considerations. Additional infrastructure expenses must be considered (e.g. Energy efficient cabinets, new network cabling....) Prototype testing Migration Commissioning
    10. 10. VMWARE (ESX, Server)CITRIX (Xen)SUN xVM (VirtualBox)MICROSOFT (Hyper-V Server2008)PARALLELSVIRTUALIRON
    11. 11. CASE STUDY: Evaluation and Comparison of market leader VMWARE ESX product and MICROSOFT recent entry HYPER-V product.
    13. 13. Hardware requirements: Minimum: 1 GB RAM; Recommended: 2+ GB RAM Maximum (64-bit systems): 256 GB RAM Hard disk space: Minimum: 10 GB; Recommended: 40 GB or greater. Requires local disk for system, recommended SCSI, SATA limited compatibility. Storage can be attached externally (physical, virtual). Hardware must be VMWARE certified.
    14. 14. VMWARE typical scenarioGuest O.S.: SOLARIS 10
    15. 15. VMWARE ESX ServerCASE STUDY: 7-eleven Solution Overview Customer Size: 31,500 employees Organization Profile  7-Eleven, Inc. is the world’s largest operator, franchisor and licensor of convenience stores (34,800 stores in 17 countries, 5,600 stores in North America). 7-Eleven also is one of the nations largest independent gasoline retailers. Hardware  HP ProLiant DL380 G5 servers  Quad-Core Intel Xeon processors Partner(s) HP Software and Services  VMWare ESX, VirtualCenter, VMotion Vertical Industries  Convenience retailing, gasoline retail.
    16. 16. VMWARE ESX ServerCASE STUDY: 7-eleven (cont.) RESULTS : • 15:1 server consolidation on 2-CPU servers, 30:1 on 4-CPU servers • Shortened deployment time from 6-8 weeks to one day • Improved server utilization by 60 percent • Optimized server management with VirtualCenter • Reduced downtime with VMotion • Compressed development and testing cycles • Drastically reduced energy and cooling costs • Provided mainframe levels of reliability and data security at lower cost
    17. 17.  Launched in 2012 (late entry in the market – almost 10 years after VMware). Available as a stand-alone product or as part of Windows 2012 Server Different licensing and configuration options.
    18. 18. Microsoft Hyper-V Server PackagingVirtualization Hyper-V Server Windows 2008 Windows 2008 Windows 2008Needs (standalone) Server Server Server Standard Enterprise DatacenterServer    ConsolidationTest &    DevelopmentMixed Windows    & Linux virt.High Availability  Quick Migration  Support for > 4  processorsIncluded guest 0 1 physical 1 physical 1 physical +MS licenses (must purchase) + 1 VM + 4 VM unlimited VMPersonal Note: this tableneeds to be updated
    19. 19. Hyper-V Server Architecture
    20. 20. Microsoft Hyper-V Server Hardware requirements:  64-bit x86 processor with hardware-assisted virtualization (Intel VT or AMD-V).  Data execution prevention (DEP) enabled in BIOS. Specifically, you must enable Intel XD bit (execute disable bit) or AMD NX bit (no execute bit).  Hardware virtualization enabled in BIOS.
    21. 21. Microsoft Hyper-V Server Hardware requirements (continued):  Minimum: 1 GB RAM; Recommended: 2+ GB RAM  Maximum (64-bit systems): 32 GB  Hard disk space: Minimum: 10 GB; Recommended: 40 GB or greater. Requires local disk for system, storage can be attached externally.
    22. 22. Product implementationStand-alone: Microsoft Hyper-V Server: Contains Windows Hypervisor and other components including base kernel and driver technologies. (Only command line or remote management)As part of Windows 2008 Server: Available as a role in Server core or full installation of the Windows 2008 server (Standard, Enterprise, Data Center). GUI console, remote management, command line interfaces. Personal Note: this needs to be updated
    23. 23. Microsoft Hyper-V Technical DataGUEST O.S. SPECIFICATIONS 32 bit (x86) operating systems (e.g. MS-Windows 9x, XP, Vista*; MS-Windows 200x except for Windows 2008 self); Linux, Solaris, Unix. 64 bit (x86) operating systems (Windows, SuSE Linux)** 32 and 64 bit O.S. can execute concurrently. Up to 4 virtual processors per virtual machine Up to 31 GB memory for all (up to 128) running virtual machines (1GB reserved for Hyper-V Server Parent Partition). * : Windows Vista currently requires patch. **Note: Red Hat and other Linux must have XEN extensions SOLARIS, UNIX not yet supported.
    24. 24. Microsoft Hyper-V ServerTypical Scenario
    25. 25. SCVMM : System Center Virtual Machine ManagerProvides overview of agroup ofhosts, and VM within eachhost
    26. 26. Solution OverviewCustomer Size: 130000 employeesOrganization Profile Costco Wholesale Corporation is an international wholesale distributor based in Issaquah, Washington. Costco has 539 member warehouses and 130,000 employees.Hardware HP ProLiant DL380 G5 servers Quad-Core Intel Xeon processorsPartner(s) HPSoftware and Services Microsoft System Center Virtual Machine Manager 2008 Windows Server 2008 Windows Server 2008 Hyper-VVertical Industries Consumer Goods
    27. 27.  Mostly a Microsoft shop (1200 servers, 95% of them on Windows products) Started virtualization efforts in 2006 (using MS Virtual Server 2005, a previous, limited virtualization product). As soon as hearing about Hyper-V, enrolled in MS Virtualization Rapid Deployment Program. Using MAP tool (Microsoft Assessment and Planning) server loads were evaluated, discovering underutilized servers, good candidates for consolidation.
    28. 28.  Initial phase: 50+ servers consolidated on 5 HP servers with Quad- Core Intel Xeon processors. The server cluster has a core infrastructure that mimics the production Costco environment Quality Assurance staff verifying reliability and stability before rolling out new systems to internal customers and member warehouses. By virtualizing existing servers instead of purchasing new physical machines, Costco limited the proliferation of servers in its data center. IT staff at Costco expects to achieve 40-45% virtualization by August 2009. Expected savings in energy costs, currently $75,000/mo (yet to quantify). ROI not yet published (estimated?)
    29. 29.  Hyper-V lacks some advanced features of VMwares ESX server and virtualization platform, but its relatively low cost, integrated physical and virtual management, and ease of implementation might be good enough for many organizations today. Microsoft-based shops will eventually migrate to Windows 2008 and have access to Hyper-V (Netscape history repeating ?)
    30. 30.  One important disadvantage of Hyper-V is its requirement for 64-bit hardware. This excludes many 32-bit based infrastructures that may benefit greatly from virtualization, leaving them to the competition.
    31. 31.  VMWARE claims to be less expensive than MS-Hyper-V, mainly due to Microsoft’s pricing model regarding licenses of guest OSs, despite a higher license cost per installation.  VMWARE footprint: 32 MB vs HYPER-V 2 GB : bigger attack surface.  VMWARE ESX server provides sophisticated features not yet available in MS-Hyper-V that can be very valuable in high production environments.VMWARE Transparent Page Sharing VMWARE Balloon Driver
    32. 32. Cloud-based virtual desktop, apps Server virtualization only first step. Storage Desktop Mobile Appliances Cloud computingA lot happeningright now!
    33. 33.  As newer operating systems and hardware supporting virtualization appear, it will become mainstream in every aspect of IT. Already prime consideration in the Data Center. Already an option in Storage. Strong consideration at the desktop level. Active development in the mobile arena (e.g. Android Hypervisor already in 1st phone)  new approaches for enterprise application development,access, distribution.
    34. 34. { Pierre-Juan Labeyrie