The evolution of virtualization lead to an evolution of wide range of virtualized technology including the key building block of a data center which is Network. A traditional network used be wired connection of physical switches and devices. A network … Continue reading
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Networking in SCVMM is a communication mechanism to and from SCVMM Server, Hyper-v Hosts, Hyper-v Cluster, virtual machines, application, services, physical switches, load balancer and third party hypervisor. Functionality includes: Logical Networking of almost “Anything” hosted in SCVMM- Logical network … Continue reading
Windows server 2012 R2 can be configured as a Gateway VM in a two or four node cluster on Hyper-v Host. Gateway VM or router enhance Data Center by providing them a secure router for public or private cloud. Gateway VM cluster can provide routing functionality up to 200 tenants. Each Gateway VM can provide routing functionality for up to 50 tenants.
Two different versions of the gateway router are available in Windows Server 2012 R2.
RRAS Multitenant Gateway – The RRAS Multitenant Gateway router can be used for multitenant or non-multitenant deployments, and is a full featured BGP router. To deploy an RRAS Multitenant Gateway router, you must use Windows PowerShell commands
RRAS Gateway configuration and options:
- Configure the RRAS Multitenant Gateway for use with Hyper-V Network Virtualization
- Configure the RRAS Multitenant Gateway for use with VLANs
- Configure the RRAS Multitenant Gateway for Site-to-Site VPN Connections
- Configure the RRAS Multitenant Gateway to Perform Network Address Translation for Tenant Computers
- Configure the RRAS Multitenant Gateway for Dynamic Routing with BGP
Windows Server 2012 R2 Gateway – To deploy Windows Server Gateway, you must use System Center 2012 R2 and Virtual Machine Manager (VMM). The Windows Server Gateway router is designed for use with multitenant deployments.
Multi-tenancy is the ability of a cloud infrastructure to support the virtual machine workloads of multiple tenants, but isolate them from each other, while all of the workloads run on the same infrastructure. The multiple workloads of an individual tenant can interconnect and be managed remotely, but these systems do not interconnect with the workloads of other tenants, nor can other tenants remotely manage them.
This feature allow service provider the functionality to virtually isolate different subnets, VLANs and network traffic which resides in same physical core or distribution switch. Hyper-v network virtualization is a Network Virtualization Generic Routing Encapsulation NVGRE which allows tenant to bring their own TCP/IP and name space in cloud environment.
|Option||Hyper-v Host||Gateway VM|
|CPU||2 Socket NUMA Node||8 vCPU for two VMs
4 vCPU for four VMs
|Network Adapter||Two 10GB NICs connect to Cisco Trunk Port1||4 virtual NICs
|Clustering||Active-Active||Active-Active or Active-Passive|
1-NIC Teaming in Hyper-v Host- You can configure NIC teaming in Hyper-v Host for two 10GB NICs. Windows Server 2012 R2 Gateway VM with four vNIC that are connected to the Hyper-V Virtual Switch that is bound to the NIC Team.
Since the emergence of vSphere 6.0, I would like to write an article on vSphere 6.0 vs Windows Server 2012 R2. I collected vSphere 6.0 features from few blogs and VMware community forum. Note that vSphere 6.0 is in beta program which means VMware can amend anything before final release. New functionalities of vSphere 6.0 beta are already available in Windows Server 2012 R2. So let’s have a quick look on both virtualization products.
|Features||vSphere 6.0||Hyper-v Server 2012 R2|
|Certificate Authority||Active Directory Certificate Services|
|Certificate Store||Certificate Store in Windows OS|
|Single Sign on||VMware retained SSO 2.0 for vSphere 5.5||Active Directory Domain Services|
|Database||vPostgres database for VC Appliance up to 8 vCenter||Microsoft SQL Server
|Management Tools||Web Client & VI
VMware retained VI
|SCVMM Console & Hyper-v Manager|
|Installer||Combined single installer with all input upfront||Combined single installer with all input upfront|
|vMotion||Long distance Migration up to 100+ms RTTs||Multisite Hyper-v Cluster and Live Migration|
|Storage Migration||Storage vMotion with shared and unshared storage||Hyper-v Live Storage Migration between local and shared storage|
|Combined Cloud Products||Platform Services Controller (PSC) includes vCenter, vCOPs, vCloud Director, vCoud Automation||Microsoft System Center combined App Controller, Configuration Manager, Data Protection Manager, Operations Manager, Orchestrator, Service Manager, Virtual Machine Manager|
|Service Registration||View the services that are running in the system.||Windows Services|
|Licensing||Platform Services Controller (PSC) includes Licensing||Volume Activation Role in Windows Server 2012 R2|
|Virtual Datacenters||A Virtual Datacenter aggregates CPU, Memory, Storage and Network resources.||Provision CPU, Memory, Storage and network using create Cloud wizard|
Another key feature to be compared here that those who are planning to procure FC Tape library and maintain a virtual backup server note that vSphere doesn’t support FC Tape even with NPIV and Hyper-v support FC Tape using NPIV.
Hyper-V has been integral part of Windows Server 2008 and enhanced with great features in Windows Server 2012. According to Gartner’s magic quadrant Microsoft Hyper-v has been positioned in the leader category second to VMware. Combining Windows Server 2012 and System Center 2012 provide you a high performance Cloud Technology. Microsoft licensing model is highly flexible and charges only by physical processors and offer unlimited virtualization rights with Datacenter editions. With Hyper-v, your return on investment (ROI) increases as your workload density increases.
The pricing is based on the following assumptions:
- Average consolidation ratio of 12 VMs per physical processor.
- Number of physical hosts required 21. Each physical host contains 2 physical processors with six cores each.
- Three years License and Maintenance; VMware cost includes Windows Server 2012 Datacenter edition for running guests
- costs do not include hardware, storage or project cost
- Pricing is based on published US prices for VMware and Microsoft as of September, 2012.
- The cost above doesn’t include Microsoft Windows Server license cost for guest operating system.
- Windows Server 2012 Datacenter allows you to run unlimited Windows Server 2012 on Hyper-v Server 2012 host.
Server Virtualization Environment:
Microsoft Server Virtualization Cost break-down
VMware Server Virtualization Cost break-down
Features VS Cost Breakdown- Multi-Site Private Cloud Computing
Together with Windows Server 2012 and System Center 2012 is truly a cloud and datacenter management solution with eight separate components such as management, monitoring, provisioning, disaster recovery integrated into one unified product. A unified System Center management solution delivers greater OPEX cost savings than VMware in addition to CAPEX cost savings.
Breakdown in resources (/Host/Guest/Cluster):
Truth about VMware lies:
You don’t have to be Einstein to understand that VMware is in significant pressure from all sides. Hence they are misleading Cloud market with biased information. I would strongly recommend you to assess your business position, compare apple to apple before renewing/buying your next Cloud products. Though VMware is still no.1 player in Cloud Computing market but their fear is real that VMware loyal Customer is switching continuously to Microsoft Cloud Technology. A declining enterprise market leads them to spread the following one sided information.
1. VMware claim: VMware vSphere 5.1 can achieve an 18.9% higher VM density per host than with Microsoft Hyper-V.
Facts: In one of VMware’s own tests, when provided adequate memory to support the number of users the performance variance between vSphere 5.1 and Hyper-V R2 SP1 was only 2% (using 24VM’s).
2. VMware claim: Hyper-V performance is poor. If performance is important to you, choose VMware.
Facts: In reality, Hyper-V offers near-native levels of virtualization performance, for which there are multiple supporting proof points (including independent third party validations):
- Enterprise Strategy Group Report (2011) – SharePoint, Exchange, & SQL on Hyper-V Host.
- Microsoft & Intel – 700,000 IOPS to a VM | Near Native with VMq: Windows Server and Hyper-V are not a limiting factor to IO performance. There shouldn’t be any significant concern around IO for virtualizing with Hyper-V.
- Project Virtual Reality Check (Terminal Services on Hyper-V).
3. VMware claim: Hyper-V isn’t ready for the enterprise. It can’t handle the most intensive of workloads like VMware can.
Facts: Hyper-V offers near native levels of performance for key workloads, ensuring that customers can virtualize their mission critical, high-performance applications and workloads with confidence on Hyper-V. Additionally, a growing number of enterprise customers are running their businesses on Microsoft Hyper-V. Please read Microsoft Private Cloud success stories.
4. VMware claim: Hyper-V is lacking some of the key VMware features today. Features such as vMotion, HA, Memory Overcommit, DRS, Storage vMotion and Hot-Add are important features for us, and Hyper-V simple doesn’t come close.
Facts: Hyper-V R2 SP1 and System Center 2012 provide Live Migration, High Availability, Storage Live Migration, Dynamic Memory Allocation, Hot-Add and subsequent removal of storage.
5. VMware claim: VMware vSphere 5.1 is more secure than Hyper-V because it’s architecture and small code base.
Facts: Small footprint doesn’t equal a more secure hypervisor. Both vSphere and Hyper-V use the same memory footprint to run. The disk Footprint in ESXi 5.0 (144 MB) doubled from ESXi 4.0 (70 MB). Microsoft follows the rigorous, industry-leading Secure Development Lifecycle (SDL) for all its products. It is possible to achieve a 40-60% reduction in patches using Server Core based on historical data.
6. VMware claim: There is no virtual firewall in Hyper-V while VMware provides vShield Zones.
Facts: Windows Server 2012 also includes an integrated firewall with advanced security features. An old version of vShield Zones is included with vSphere 5.1 (details here) and vShield Zones has several limitations like every VM’s traffic passes through the Zones virtual appliances which slows down the traffic.
7. VMware claim: Microsoft doesn’t offer anything comparable to VMware Fault Tolerance.
Facts: VMware Fault Tolerance has limited applicability and severe limitations. It cannot function with:
- Thin Provisioning and Linked Clones
- Storage vMotion
- Hot plug devices and USB Pass-through
- N-Port ID Virtualization (NPIV)
- Serial/parallel ports
- Physical and remote CD/floppy drives
- no more than 4 FT VMs per host be used
8. VMware claim: VMware significantly support for Linux operating systems than Hyper-V.
Facts: In production environment, Hyper-v supports Microsoft Windows Server and Linux Server without modifying any guest operating systems or installing tools.
9. VMware claim: VMware supports broad applications, while Hyper-V does not.
Facts: Since VMware does not have certified logo program for any application, they are not in position to dictate which application are supported or not. On the contrary, every single application that achieves a logo for Windows Server can be run on guest operating system on a Hyper-V, and is therefore inherently supported. There are over 2500 ISV applications listed on Microsoft Pinpoint that work with Hyper-V. Truth is neither Microsoft nor VMware mention which application you can install on a guest operating systems. It’s completely up to you what you would like to run on guest operating systems.
10. VMware claim: VMware’s Site Recovery Manager (SRM) enables us to simplify our DR story, and provides us with a solution to not only perform a planned failover, but test it whenever we like. Microsoft simply can’t deliver an alternative to this.
Facts: System Center 2012 components like Data Protection Manager and Orchestrator can provide tailored DR solutions. Windows Server 2012 includes an inbox replication capability, Hyper-V Replica, at no cost.
11. VMware claim: Microsoft Hyper-v isn’t ready for Hoster or Service Provider.
Facts: Hyper-v has been adopted by service provider industry to host their own infrastructure and public cloud simultaneously on Hyper-v utilizing Microsoft Network Virtualization. Click here and filter using hosting and public cloud to find the list of hoster. Examples: hostway, softsyshosting , hyper-v-mart , geekhosting , BlueFire and many more.
12. VMware Claim: Hyper-v does not fully comply with Trunking, VLANs
Facts: Microsoft Network virtualization is more advanced than VMware standard Switch and DV Switch. Microsoft Hyper-v is fully compliant with 802.1q trunking, VLANs, VIP, networking Tunneling, multitenant IP management. VMware is catching up on network virtualization. Being in back foot VMware advertised to hire a PR professional to campaign on network virtualization.
Bottom-line: Why Selecting Hyper-v Over VMware
Other than cost savings, the following reasons why you should select Hyper-V and System Center 2012 over VMware vSphere 5.1
1. Built-in Virtualization: Hyper-V is an integral part of Windows Server 2008 and Windows Server 2012
2. Familiarity with Windows: In-house IT staff can utilize their familiarity and knowledge of Windows environment to deploy Hyper-v minimizing training cost and learning time.
3. Single Platform Cloud Management Technology: System Center 2012 enables you to manage physical, virtual, private and public cloud using a common console view for multi-hypervisor management, 3rd party integration and process automation, ability to manage applications via a single view across private and public clouds, and deep application diagnostics and insights.
4. Running common Microsoft Application: It is obvious that Microsoft application will run better on Hyper-v 2012. Still Microsoft has published third-party validated lab results that prove best-in-class performance for Microsoft workloads on Hyper-V.
5. Private, Public or Hybrid Cloud: Microsoft provides complete solutions for Private, Public or Hybrid cloud with next generation computing technology like IaaS, PaaS, SaaS.
6. Value for Money: Microsoft Private Cloud provides value for money. You will receive unrestricted virtualization license once you buy Windows Server 2012 Datacenter and System Center 2012.
7. Easy Migration: Convert VMware virtual machine to Microsoft Hyper-v virtual machine in few easy steps. See this link.
8. Single Vendor: Since your existing virtualization workload is mostly Windows Server, from vendor communication and contract management point of view, having Microsoft Hyper-v make more sense.