Windows 8 : Why should my hardware have SR-IOV capabality ?

Single Root I/O Virtualization (SR-IOV)

SR-IOV capability will significantly reduce the overhead on network IO operations.

It allows for a virtual machine to have near native IO against the physical NIC, allowing applications that require very low latency to work inside of virtual machines.

What does it require?

  • It must bypass teaming
  • Interrupt and DMA remapping
  • Access Control Services (ACS) on PCIe root ports
  • Alternative Routing ID Interpretation (ARI)
  • Hardware virtualization, EPT or NPT

Where to create:

- In the Hyper-V Manager, click on Virtual Switch Manager on the right panel

- Click Add New Virtual Switch

- Type the name of the virtual switch

- Tick box for Enable Single Root I/O virtualization (SR-IOV)

IMPORTANT :

More about SR-IOV here : SR-IOV feature (Single Root – I/O Virtualization)

Microsoft SR-IOV Support on Dell PowerEdge Servers (source : http://en.community.dell.com/techcenter/os-applications/w/wiki/3459.dell-supported-platforms-for-windows-server-8-sr-iov-feature.aspx):

Dell PowerEdge 12th Generation servers support the SR-IOV servers but previous generations have exceptions.

Below is a list of Dell 11th Generation platforms that support the SR-IOV feature:

  • R910

The following platforms are also supported and must be an 11G Generation II server:

  • T410, R410, R510, R610, T610, R710, T710.

How to identify an 11G Generation II system:

  1. These servers will be physically marked with symbol “II” on the Express service tag.  The Express service tag is located in front panel of the system.
  2. These systems support Intel 56XX (Westmere) processors
  3. The System Revision Field in the iDRAC GUI will have “II”

Supported SR-IOV network cards:

  • Intel X520 10GB Ethernet adapters.

Because Windows Server 8 Beta is a pre-release product still in active development, Dell does not provide any support for this pre-release software and it is not recommended for use in a production environment.

About Alessandro Cardoso
Virtualization and Management passionate. Infrastructure products and solutions knowledge with management and hands on experience; Project Leader, with deep knowledge and expertise in a variety of Microsoft Infrastructure technologies in areas such as Virtualization and Management with product skill sets ranging from, Hyper-V, System Center, Windows Server, SQL Server, Active Directory, Exchange, SharePoint, IIS and Forefront; Plus knowledge in Quest Migration Manager, Linux Infrastructure, Networking, Security Solutions (such as VPN, Firewall) and VMware in complex and large scenarios; Strong knowledge of industry-related datacenter processes, strategies, industry regulations and requirements. Selected as Microsoft Brazil IT Hero, in 2007 and Microsoft IT Heroes Happen in Los Angeles, in 2008. selected as Bussiness Case, further virtualization project for a Governmental Institution. I am also a well known speaker in IT events (e.g. Microsoft TechEd 2007, 2008, 2010 and 2011). MVP since 2009, in Virtual Machine. I have experience developing, planning, organizing, and leading complex initiatives as well business case development skills, acquired in 23 years of experience in IT, working in segments spanning from Government, Health, Education and IT. Well-known speaker in IT events like TechEd, Sage-AU, CNASI. Proven Multitasking skills, presentation skills and analytical skills and problem determination ability; Belief in providing the highest quality of service; Good listener and communicator; Know how to prioritize the work and perform under pressure. Continuously seeking innovative ways to improve productivity and a resourceful problem-solver with focus on customers. Microsoft Most Valuable Professional : Virtual Machine Certifications : Australia Computer Society Certified Professional, MCITP: Enterprise, MCSE: Security, MCSA, MCT, MCTS:SQL, MCTS:SharePoint, MCTS:Vista, Linux Conectiva Professional, Modulo Certified Security Officer Blogs : http://virtualizationandmanagement.wordpress.com http://virtualizacaoegerenciamento.wordpress.com

One Response to Windows 8 : Why should my hardware have SR-IOV capabality ?

  1. Thanx says:

    Your explanation is concise, quick and easy to understand. No website has explained it the way you did. Thank you very much Alessandro Cardoso

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