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Microsoft Virtual Server: Overview and Roadmap

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Microsoft Virtual Server: Overview and Roadmap. Mike Neil ... A better understanding of the roadmap for Microsoft Virtual Server and Windows virtualization ... – PowerPoint PPT presentation

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Title: Microsoft Virtual Server: Overview and Roadmap


1
Microsoft Virtual Server Overview and Roadmap
  • Mike Neil
  • Product Unit Manager Windows Virtualization mikene
    il _at_ microsoft.com
  • Microsoft Corporation

2
Session Outline
  • Overview of Virtual Server 2005
  • Overview
  • Architecture
  • Usage scenarios
  • Server configurations
  • Server Virtualization Roadmap
  • Virtual Server 2005 SP1
  • Overview of enhancements
  • Windows virtualization futures

3
Session Goals
  • Attendees should leave this session with the
    following
  • A solid overview of Microsoft Virtual Server 2005
  • A better understanding of the roadmap for
    Microsoft Virtual Server and Windows
    virtualization

4
Virtual Server 2005 Overview
  • Windows server virtual machine solution
  • RTMd October 2004
  • Hosted on Windows Server 2003 (32-bit)
  • Windows XP supported for non-production use
  • Supported guests
  • Windows NT4
  • Windows Server 2000
  • Windows Server 2003
  • Many x86 operating systems run, but are not
    Supported
  • Virtual Server is licensed per physical machine
  • Standard Edition 499 (1-4P)
  • Enterprise Edition 999 (unlimited)

5
Virtual Server 2005 Overview
  • Windows service with a web interface
  • Designed for remote administration
  • Fully documented COM API for scripting and ISVs
  • Virtualizes everything you find in a x86 system
  • Provides virtual disks (VHD), virtual networking
    and virtual video

6
Virtual Server 2005 Architecture
Host OS
Guest OS
Provided by
Microsoft
Virtual Server WebApp
Virtual Server Service
IIS
Guest Applications
Virtual Server
ISV
Ring 3
OEM
Ring 1
Ring 3
VS Additions
Windows (NT4, 2000, 2003)
Ring 0
Windows Server 2003 or XP
Ring 0
Kernel
VMM.sys
VMM.sys
Designed for Windows Server Hardware
7
Virtual Server 2005 Usage Scenarios
  • Production server consolidation
  • Consolidation of low-utilization workloads
  • Early adopters running around 3 workloads per CPU
  • Physical constraints one of the key drivers
  • Development and test
  • Rapid provisioning of virtual machines
  • Undo-disks and saved states help reproduce issues
  • MSDN licensing covers scenarios
  • Legacy application re-hosting
  • Consolidate legacy OS and application on 2003
  • Legacy OS is still a management issue
  • Reduces costs of older hardware

8
Virtual Server 2005 Server Configurations
  • Memory
  • A virtual machine needs as much memory as a
    physical machine
  • Plus overhead (25MB per virtual machine)
  • Overhead for MMU virtualization, video emulation,
    etc
  • CPU
  • Virtual Server provides CPU allocation controls
  • Maximum (not to exceed)
  • Reserve (will always have enough)
  • Weights (weighted average)
  • One virtual processor per virtual machine
  • Scales multiple virtual machines across multiple
    processors

9
Virtual Server 2005 Server Configurations
  • I/O
  • Virtual machines will be sharing disk and
    networking paths
  • A virtual machine doesnt do less I/O than
    a physical machine
  • Configure systems with multiple I/O paths
  • Multiple spindles for disks
  • Controllers can become the bottleneck
  • Multiple NICs for performance, isolation and
    resilience
  • Fault resilient hardware
  • With consolidation, all your eggs are in one
    basket

10
Server Virtualization Roadmap
  • Today
  • Virtual Server 2005 RTM
  • Virtual Server 2005 SP1 Beta
  • This year
  • Virtual Server 2005 SP1 RTM
  • Future
  • Windows virtualization
  • Windows hypervisor

11
Virtual Server 2005 SP1 Overview
  • 64-bit
  • x64 hosts - 32-bit guests
  • Windows Server 2003 Standard x64 Edition
  • Windows Server 2003 Enterprise x64 Edition
  • Windows XP Professional x64 Edition
  • 64-bit port of VMM and service
  • Better scaling from larger kernel address space
  • x64 systems typically can have more RAM
  • Additional guest supported
  • Windows Server 2003 Standard Edition Service Pack
    1
  • Windows XP Professional Service Pack 2

12
Virtual Server 2005 SP1 Overview
  • Performance enhancements
  • Improved shadow page table management
  • Improved performance of guest process switching
    and memory intensive application
  • 65 increase in internal TPC-C in memory tests
  • Early customer saw a 50 drop in CPU utilization
  • PXE booting
  • Emulated Ethernet card now supports PXE booting
  • No need for a RIS floppy
  • Integrates virtual machines into deployment
    infrastructure

13
Virtual Server 2005 SP1 Overview
  • Other improvements
  • Bug fixes
  • Improved Hyperthreading support
  • F6 Disk (SCSI driver)
  • Virtual disk pre-compactor
  • Open necessary ports at install time
  • Reserve space for saved states

14
Windows Virtualization
  • Virtualization for Windows Server
  • Windows hypervisor
  • Uses Intel VT and AMD Pacifica virtualization
    extensions
  • Very thin layer of software below all OSes
  • Provides basic mechanisms for creating partitions
  • Does not contain device drivers
  • Virtualization stack
  • Runs as a foundation role with a minimal set of
    components
  • Provides the virtualization and emulation of
    devices
  • WMI interface for management and configuration
  • Virtualization Service Providers (VSPs)
  • Hardware sharing architecture
  • Microsoft will provide storage, network, video,
    USB, input, time

15
Windows Virtualization Architecture
Primary Partition
Child Partitions
Applications
Virtualization Stack
VM Service
WMI Provider
VM Worker Processes
Ring 3
Virtualization Service Providers (VSPs)
MinWin
Virtualization Service Clients (VSCs)
Windows Kernel
Windows Kernel
IHV Drivers
VMBus
VMBus
Enlightenments
Ring 0
Ring -1
Windows hypervisor
Designed for Windows Server Hardware
16
Windows Virtualization
  • Some proposed features
  • 32-bit and 64-bit guests
  • x64-only hosts
  • Guest multiprocessing
  • Virtualized devices (VSPs)
  • WMI management and control API
  • Save restore
  • Snapshoting
  • Server-specific features
  • CPU and I/O resource controls
  • Tuning for NUMA
  • Dynamic resource addition removal
  • Live migration

17
Community Resources
  • Windows Hardware Driver Central (WHDC)
  • www.microsoft.com/whdc/default.mspx
  • Technical Communities
  • www.microsoft.com/communities/products/default.msp
    x
  • Non-Microsoft Community Sites
  • www.microsoft.com/communities/related/default.mspx
  • Microsoft Public Newsgroups
  • www.microsoft.com/communities/newsgroups
  • Technical Chats and Webcasts
  • www.microsoft.com/communities/chats/default.mspx
  • www.microsoft.com/webcasts
  • Microsoft Blogs
  • www.microsoft.com/communities/blogs

18
Additional Resources
  • Email msvirtex _at_ microsoft.com
  • Web Resources
  • http//www.microsoft.com/virtualserver
  • MSDN for Virtual Server 2005 COM API
  • http//msdn.microsoft.com/library/en-us/msvs/msvs/
    portal.asp
  • Related Sessions
  • Windows virtualization architecture
  • More detailed discussion of hypervisor and
    Virtualization Service Providers
  • Virtualization Technology for AMD Architecture
  • Virtualization Technology for Intel Architecture
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