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Hyper v® 2012 vs v sphere™ 5.1 understanding the differences

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With Hyper-V 2012, Microsoft® has closed many of the gaps it previously had with VMware®, and this webcast will walk through a comparison of the scalability and features of both hypervisors: …

With Hyper-V 2012, Microsoft® has closed many of the gaps it previously had with VMware®, and this webcast will walk through a comparison of the scalability and features of both hypervisors:

· Architecture & footprint

· CPU & memory management

· Storage capabilities

· Mobility & availability

The discussion will provide a technical basis for understanding the pros and cons of both platforms for users looking to either choose one or who are considering using both.

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  • 1. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hyper-V® 2012 vs vSphere® 5.1Understanding the DifferencesJune 2013
  • 2. About the Speakers» Scott Lowe 20 years experience in the IT industry Prolific author of thousands of articles and 4 books Top virtualization blogger, two-time vExpert Founder and Managing Consultant, The 1610 GroupFollow me on Twitter @otherscottlowe» Lawrence Garvin SolarWinds Head Geek for Systems Management Microsoft Certified IT Professional Microsoft MVP (eight consecutive times) 25 years experience in the IT Industry© 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
  • 3. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Agenda» Why Should You Learn About Hyper-V?» Hypervisor Types and Footprints» Kernel Variances» A Similarity: CPU Scheduling Controls» vSphere Memory Handling» Hyper-V Dynamic Memory» Product Storage Options» vSphere Storage Capabilities» Networking» Workload Migrations» Cost Comparison Scenario3
  • 4. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Why Should You Learn About Hyper-V?» You may not always be working with VMware®» With Windows® 2012, Microsoft® released a new version ofHyper-V with new features, a trend continuing with therelease of Windows Server® 2012 R2» For many organizations, Hyper-V 2008 R2 proved to be ok forlimited workloads while Hyper-V 2012 has largely closed thegap» For those with existing Microsoft infrastructures, Hyper-V maybe the best fit» We’re in the multi-hypervisor age4
  • 5. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hypervisor Types and Footprints» Common misunderstanding Both vSphere and Hyper-V are Type 1 hypervisors vSphere has a much smaller footprint than Hyper-V• vSphere: 144 MB• Hyper-V: Minimum of 5 GB (Server Core), 10 GB (Full GUI)5» Hyper-V requires the use of a“root partition” for operations» General purpose Windows =greater hardware compatibility vSphere remains less forgiving onhardware compatibility
  • 6. © 2012 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Kernel Variances» vSphere Monolithic kernel vSphere architecture revolvesaround a more monolithic corewhich includes many shared driversas well as the virtualization stack» Hyper-V Microkernelized Lends flexibility and security to the hypervisor model by isolating thevirtual machines from one another with little shared code, such asdrivers More synthetic drivers are used, which can boost overall serviceperformance6
  • 7. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.A Similarity: CPU Scheduling Controls» vSphere Shares. If a VM has a share value that is half ofanother, it’s entitled to only half the CPU resources. Reservation. A guarantee that a virtual machine willreceive at least some level of resourcing. Limit. Limits the ability of the virtual machine toconsume unlimited resources. vSphere has a powerful CPU scheduling mechanism inplace that ensures that virtual machines receiveattention from the system. VMware has produced awhite paper that goes into great technical depth forhow this scheduling is achieved.• http://www.vmware.com/files/pdf/techpaper/VMware-vSphere-CPU-Sched-Perf.pdf7
  • 8. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.A Similarity: CPU Scheduling Controls» Hyper-V Virtual machine reserve (percentage). Allows the reservation of aportion of the server’s total processing resources for this virtualmachine. Virtual machine limit (percentage). Limit how much of a host’sprocessing resources can be consumed by a single virtual machine. Relative weight. allows the weighting of this virtual machine againstothers.8
  • 9. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.A Similarity: CPU Scheduling Controls» Hyper-V Virtual machine reserve (percentage). Allows the reservation of aportion of the server’s total processing resources for this virtualmachine. Virtual machine limit (percentage). Limit how much of a host’sprocessing resources can be consumed by a single virtual machine. Relative weight. allows the weighting of this virtual machine againstothers.9
  • 10. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Automated Resource Scheduling» vSphere Distributed Resource Scheduler• Aggregates cluster resources into a single resource pool• Provides both initial placement services and continuous optimization• Enables affinity rules to ensure that workload placement meets businessand availability rules• Supports clusters of up to 32 hosts and 4,000 virtual machines» Hyper-V Resource placement• When used with VMM 2012 provides Dynamic Optimization• Provides cluster-level workload balancing for VMs• By default, every 10 minutes, evaluates state and rebalances as necessary• Anti-affinity rules possible with VMM 2012 SP1+10
  • 11. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.vSphere Memory Handling» VMware Oversubscription/Overcommit. Allows administratorsto assign more aggregate RAM to virtual machines than isactually physically available in the server. Transparent Page Sharing. This is basically a deduplication methodapplied to RAM rather than storage. Guest Ballooning. A method by which virtual machines can borrowmemory from one another.11» Memory compression. A technique thatis used to prevent the hypervisor fromneeding to swap memory pages to diskwhen RAM becomes limited.
  • 12. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hyper-V Memory Handling» Dynamic Memory reliesprimarily on a processsimilar to vSphere GuestBallooning feature. To prevent a virtual machinefrom having RAM reduced todangerous levels, Hyper-Vprovides a (default) buffer of20% of unused memory.» Smart Paging uses disk as atemporary cache in certainVM reboot scenarios.12
  • 13. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Product Storage Options13
  • 14. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Supported Storage Features14
  • 15. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.VMFS vs. VHD» Both VMware and Microsoft provide clustering mechanisms» VHD/VHDX relies on MS CSV Much more complicated than vSphere clustering» Both MS and VMware providedirect access to storage vSphere: Raw DeviceMapping (RDM) Hyper-V: Pass-through disks15
  • 16. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.vSphere Storage Capabilities» Centralized management of datastores. A single location inwhich all data stores can be managed in order to providemore visibility into the environment.» Storage Management Initiative Specification (SMI-S)support. Standardized monitoring of storage.» Caching. Improves performance.» Storage DRS. A way to automatically place VMs to loadbalance Storage IO demands.16
  • 17. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hyper-V Storage Capabilities» Centralized management of datastores. A single location inwhich all data stores can be managed in order to providemore visibility into the environment. Provided with VMM.» Storage Management Initiative Specification (SMI-S)support. Standardized monitoring of storage.» No good answer yet to storage DRS.17
  • 18. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Power Management» VMware Distributed PowerManagement (DPM). Combineworkloads onto fewer physicalmachines, which also reduces theamount of electricity consumedin aggregate.» Hyper-V Power Optimization.Power Optimization can shutdown hosts that are notnecessary to meet clusterperformance and resourcerequirement.» These techniques automate theprocess of energy conservation,leaving the administrator free tofocus elsewhere .18
  • 19. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.vSphere Network Features» vSphere TCP Segmentation Offload. The TCP/IP stack can submit frames of upto 64 KB to the NIC -- the NIC then repackages these frames into sizesthat fit inside the network’s maximum transmission unit (MTU) size. NetQueue. Enables the system to process multiple network receiverequests simultaneously across multiple CPUs. iSCSI. iSCSI traffic results in a “double hit” from a CPU overheadperspective. Distributed Virtual Switch. A virtual device that spans multiplevSphere hosts (Enterprise Plus only). vSphere also includes portmirroring capability.19
  • 20. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hyper-V Network Features» Large Send Offload (LSO). Provides Hyper-V hosts with theability to submit larger frames – in this case up to 256KB insize – to the network adapter for further processing» Virtual Machine Queue (VMQ). Createsmultiple virtual network queues for eachvirtual machine. Network packetsdestined for these virtual machines arethen sent directly to the VM, reducingsome overhead20
  • 21. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Hyper-V Network Features» SR-IOV. enables an administrator to directly assign asupported physical NIC to a virtual machine. This optioncarries with it some network throughout and host CPUperformance benefits since the hypervisor does not have toabstract and manage the network communications for thatadapter.» Hyper-V Extensible Switch Included in all editions of Hyper-V, including the free edition. Thissoftware construct runs in the management partition and brings toHyper-V a host of capabilities. Most importantly, the software switchgreatly simplifies the deployment of Hyper-V into multi-tenantenvironments by offering private VLANs, DHCP Guard, and improvedmonitoring capabilities. Microsoft extensible switch also includes portmirroring capabilities.21
  • 22. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Workload Migration» vSphere vMotion is one of VMwareclaimsto fame and for good reason Zero downtime migrations Multiple network adapter use Metro vMotion No shared storage requirement» Hyper-V Hyper-V has caught up with LiveMigration Zero downtime migrations Shared nothing Live Migration Requires Microsoft FailoverClustering• More complex environment22
  • 23. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Storage Migration» vSphere Storage vMotion is another ofVMware’s claims to fame• Zero downtime migrations• Thick to thin• Raw Device Mapping disk (RDM) to VMDK» Hyper-V Live Storage Migration• No shared resources required• Zero downtime23
  • 24. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Availability» vSphere VMware High Availability• Monitors virtual machines to detect operating system and hardwarefailures and moves workloads to other hosts VMware Fault Tolerance• Continuous protection for mission critical workloads by running a shadowcopy of a protected VM» Hyper-V Vastly simplified in Hyper-V 2012, but still behind VMware Relies on MSCS24
  • 25. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.High Level Comparison25
  • 26. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.A cost comparison scenario» Impossible to do 1:1 comparison for every scenario» Pricing Assumptions26http://www.vmware.com/products/datacenter-virtualization/vsphere/pricing.html
  • 27. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.A cost comparison scenario» Environmental assumptions This example will assume a need for 150 virtual machines Consolidation ratio: 15 to 1 = 10 hosts, 2 processors each27http://www.microsoft.com/en-us/server-cloud/windows-server/buy.aspx
  • 28. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Registration Survey Response #128What are your plans for Hyper-V deployment?Results based on registration responses as of 6/14/13
  • 29. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Registration Survey Response #229Will you run a mixed hypervisor environment?Results based on registration responses as of 6/14/13
  • 30. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.The Future of Hyper-V» Hyper-V 2012 R2 will bring even more to the table Hyper-V Recovery Manager (Azure-based) Generation 2 virtual machines• UEFI boot only• Server 2012+, Windows 8+ only Additional monitoring metrics Storage Quality of Service FULL Linux® guest support USB passthrough30
  • 31. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Summary» VMware still holds a lead in certain critical areas, but that leadis often very narrow» For mission critical needs, many continue to choosevSphere, but its share is waning31http://wikibon.org/wiki/v/VMware%27s_hypervisor_hold_may_be_waning
  • 32. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.The SolarWinds Story» Why Do I Need Virtualization Management? As the hypervisor takes on more management and automation tasks:• It is harder to manually connect VM, host, datastore, and HW resources• Change happens very quickly requiring automated alerting & monitoring• Hard to track contention in shared resources» SolarWinds® Virtualization Manager is: Easy to find• www.solarwinds.com• Partner websites, and Internet Search Easy to buy• Downloadable from the website for evaluation and purchase• Affordable price points Easy to install• Products can be downloaded, installed, and configured generally in less than an hour• No Professional Services needed for deployment Easy to use• Windows-based products• Intuitive user interfaces and graphical tools32
  • 33. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Questions & Answers33
  • 34. © 2013 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.Thank YouThe SOLARWINDS and SOLARWINDS & Design marks are the exclusive property ofSolarWinds Worldwide, LLC, are registered with the U.S. Patent and TrademarkOffice, and may be registered or pending registration in other countries. All otherSolarWinds trademarks, service marks, and logos may be common law marks, registeredor pending registration in the United States or in other countries. All other trademarksmentioned herein are used for identification purposes only and may be or aretrademarks or registered trademarks of their respective companies.

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