it camp ws8 beta hyper-v

Windows Server “8” BetaHyper-V: A More Complete Virtualization Platform

Chris E. Avischrisavis.com

@chrisavis

The information contained in this document relates to a pre-release product which may be substantially modified before it is commercially released. Microsoft makes no warranties, express or implied with respect to the information presented here.

Windows Server "8" Beta – Pre-release information only

Basic server virtualization technology helps achieve cost savings and operational efficiencies

Let’s go beyond basic

virtualization.

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Beyond virtualization

Create more dynamic platforms

to:• Build private clouds.

• Create more flexible virtualization solutions on site to support core line of business applications and high availability solutions.

Windows Server "8" Beta – Pre-release information only 3

Hyper-V before Windows Server "8" Beta

Windows Server 2008 R2 improvements to Hyper-V

• Increased availability for moving virtual machines

• Increased availability for adding and removing virtual machine storage

• Improved management of virtual data centers• Simplified method for physical and virtual

computer deployments • Hyper-V processor compatibility mode for live

migration• Improved virtual networking performance• Improved virtual machine memory

management

Hyper-V history• Introduced with Windows Server 2008• New version in Windows Server 2008 R2• Update with Windows Server 2008 R2 SP1

Two manifestations of Hyper-V • Hypervisor-based virtualization feature of

Windows Server 2008 R2• Microsoft Hyper-V Server, a free stand-alone

product containing only: – Windows Hypervisor– Windows Server driver model– Virtualization components


A more complete virtualization platform

More secure multitenancy

Flexible infrastructure, when and where you need it

Scale, performance, and density

High availability

Hyper-V in Windows Server "8" Beta


Multitenant security and isolation


Extending the Hyper-V Extensible Switch for new

capabilities

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Helps ensure that each customer’s data is completely separate and secure from other customers’ information.



Hyper-V Extensible Switch • New feature• Handles network traffic between:

– Virtual machines– The external network– The host operating system

• Layer-2 virtual interface • Programmatically managed • Extensible

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NIC = network adapter



Private virtual LAN (PVLAN)

• Isolate virtual machines from other virtual machines in your data center.

• Create community groups of virtual machines that can exchange data packets.

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Example PVLAN:‒ Primary VLAN ID is 2‒ Secondary VLAN IDs are 4 and 5


• ARP spoofing protection

• DHCP guard protection

• Virtual port ACLs

• Trunk mode to virtual machines

• Monitoring

• Windows PowerShell/WMI

• Enhanced security and isolation

• Manageability

• Isolation of customers’ networks from one another

• No need to set up and maintain VLANs

• Protection against malicious data interception


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Other tools Benefits


Extending the Hyper-V Extensible Switch for new capabilities

Two platforms for extensions:• NDIS filter drivers• WFP callout drivers

You can extend or replace:• Ingress filtering• Destination lookup and forwarding• Egress filtering

Other features:• Extension monitoring• Extension uniqueness• Extensions that learn virtual

machine life cycle• Extensions that can veto state

changes• Multiple extensions on same

switch Architecture of the Hyper-V Extensible Switch

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Hyper-V Extensible Switch extension types

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Extension Purpose Potential Examples Extensible component

Network Packet Inspection Inspecting network packets, but not altering them

sFlow and network monitoring NDIS filter driver

Network Packet Filter Injecting, modifying, and dropping network packets

Security NDIS filter driver

Network Forwarding Third-party forwarding that bypasses default forwarding

OpenFlow, Virtual Ethernet Port Aggregator (VEPA), and proprietary network fabrics

NDIS filter driver

Firewall/Intrusion Detection

Filtering and modifying TCP/IP packets, monitoring or authorizing connections, filtering IPsec-protected traffic, and filtering RPCs

Virtual firewall and connection monitoring

WFP callout driver


Flexible infrastructure, when and where you need it

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Scale beyond VLANs with Hyper-V

network virtualization

Adding and moving servers is now faster and easier.

Migrate virtual machines without downtime

Move virtual machine storage with minimal

downtime

Reliably import virtual machines

Merge snapshots while the virtual machine is running

Use new automation support for Hyper-V


Scale beyond VLANs with Hyper-V network virtualization

How network virtualization works:• Two IP addresses for each virtual

machine• General Routing Encapsulation

(GRE)• IP address rewrite• Policy management server

Problems solved:• Removes VLAN constraints.• Eliminates hierarchical IP address

assignment for virtual machines.

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IP address rewrite

• Requires no upgrade of network adapters, switches, or network appliances

• Can be deployed today without sacrificing performance

Benefits• Each Customer Address (CA) is mapped to a

unique Provider Address (PA).

• Information is sent in regular TCP/IP packets on the wire.

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How IP address rewrite works


Network virtualization example

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Benefits of Hyper-V network virtualization

Simplified network and

improved server/network resource use

No new hardware (servers, switches,

appliances) needed to help

achieve maximum

performance

Full management

through Windows

PowerShell and WMI

Tenant network

migration to the cloud without

reconfiguration and without compromising

isolation

Tenant virtual machine

deployment anywhere in

the data center

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Improvements• Faster migration and simultaneous

migration • Live migration outside a clustered

environment

SMB-share-based live migration

Live migration setup Memory page transferred

Modified pages transferred Storage handle moved



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Benefits• Increase flexibility of virtual machine

placement• Increase administrator efficiency• Reduce downtime for migrations across

cluster boundaries

“Share nothing" live migration


Move virtual machine storage with no downtime

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Live storage migration• Move virtual hard disks (VHDs) attached to a

running virtual machine.

Benefits• Manage storage in a cloud environment with

greater flexibility and control.• Move storage with no downtime.• Update physical storage available to a

virtual machine (such as SMB-based storage).

• Windows PowerShell cmdlets.


Reliably import virtual machines

Import Wizard• Detects and fixes problems• Doesn’t require the virtual machine to be exported • Allows a virtual machine to be copied to a USB flash

drive• Moves virtual machines more easily and reliably• Uses Windows PowerShell cmdlets for automation

Benefit• A simpler, better way to import or copy virtual

machines.

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Merge snapshots while the virtual machine is running

• Update parent virtual hard disks while the virtual machine is still running

Benefit

• Snapshot data are stored in .avhd files

• You can merge the .avhd disk into the parent while the virtual machine continues to run

• I/O is suspended to a small range while data in the range is processed

• At completion, online merge fixes merged disks and closes files.

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Snapshot features


Use new automation support for Hyper-V

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Designed for IT pros

More than 150 cmdlets

Consistent cmdlet nouns

Task-oriented interface



Offloaded Data Transfers (ODX) support in Hyper-V

Data Center Bridging (DCB)

Virtual Fibre Channel in Hyper-V

Support for 4-KB disk sectors in Hyper-V virtual disks

Quality of Service (QoS)

Hyper-V host scale and scale-up workload support

Dynamic Memory improvements for Hyper-V

Resource Metering in Hyper-V

New virtual hard disk format

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Increases scalability of the data center and uses fewer servers to run more virtual machine workloads.



System Resource

Maximum numberImprovement

factorWindows 2008 R2

Windows Server "8" Beta

Host

Logical processors on hardware 64 160 2.5×

Physical memory 1 TB 2 TB 2×

Virtual processors per host 512 1,024 2×

Virtual machine

Virtual processors per virtual machine 4 32 8×

Memory per virtual machine 64 GB 1 TB 16×

Active virtual machines 384 1,024 2.7×

ClusterNodes 16 64 4×

Virtual machines 1,000 4,000 4×

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Non-Uniform Memory Access (NUMA) support in a virtual machine• Projects NUMA topology onto a

virtual machine• Allows guest operating systems

and applications to make intelligent NUMA decisions

• Aligns guest NUMA nodes with host resources

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Guest NUMA topology by default matches host NUMA topology



SR-IOV support in Hyper-V• Increases network throughput • Reduces network latency • Reduces host CPU overhead for

processing network traffic

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VF = virtual function

Benefits• Maximize use of host system

processors and memory• Handle the most demanding

workloads


Virtual machine starting with Hyper-V smart paging


Windows Server "8" Beta improvements

• Minimum memory • Hyper-V smart paging• Memory ballooning• Runtime configuration

Dynamic Memory• Introduced in Windows Server

2008 R2 SP1• Reallocates memory

automatically among running virtual machines


Benefits• Higher

consolidation numbers

• Improved reliability of Hyper-V operations

• Ability to change memory configuration with minimal downtime


Removing paged memory after virtual machine restart


Resource Metering

A two-tenant environment built with Hyper-V in Windows Server "8" Beta

• Uses resource pools

• Is compatible with all Hyper-V operations

• Is unaffected by virtual machine movement

• Uses Network Metering Port ACLs

Features

• Average CPU use

• Average memory use

• Minimum memory use

• Maximum memory use

• Maximum disk allocation

• Incoming network traffic

• Outgoing network traffic

Metrics


Resource Metering

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Basic model of Resource Metering

• Tracking of virtual machine use is easier.

• You can use it to aggregate data for multiple virtual machines.

• You can use it to build accurate lookback and chargeback solutions.

• Obtaining resource usage data is easier.

Benefits of Resource Metering


New virtual hard disk format (VHDX)

VHDX principal features• Storage capacity up to 64 terabytes

(TBs)• Corruption protection during power

failures• Optimal structure alignment for

large-sector disks

Benefits• Increases storage capacity• Protects data• Helps to ensure quality performance

on large-sector disks

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Offloaded Data Transfer (ODX) support in Hyper-V

Token-based copy operation

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ODX• Data transfer between intelligent storage

arrays• Token based

Benefits• Rapid virtual machine provisioning and

migration• Faster transfers on large files• Latency minimization• Array throughput maximization• Less CPU and network usage• Performance not limited by network

throughput or server usage• Improved data center capacity and scale• Automation


Data Center Bridging (DCB)

• DCB acts as a network adapter feature.

• This mechanism provides a hardware solution for managing network traffic.

• DCB classifies and dispatches network traffic.

• Windows instructs the adapter to classify traffic.

• Traffic doesn’t have to originate from the networking stack.

How DCB works

• Network

• Storage

• Management

• Live migration

DCB converges different types of traffic

• Helps you to ensure QoS

• Makes it easier to change allocations to different traffic flow

Benefits


Virtual Fibre Channel in Hyper-V

Live migration maintaining Fibre Channel connectivity

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Access Fibre Channel SAN data from a virtual machine

• Unmediated access to a SAN• A hardware-based I/O path to virtual hard

disk stack• N_Port ID Virtualization (NPIV) support• A single Hyper-V host connected to

different SANs• Up to four Virtual Fibre Channel adapters

on a virtual machine• Multipath I/O (MPIO) functionality• Live migration


Support for 4-KB disk sectors in Hyper-V virtual hard disks

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• Improved performance of virtual hard disks on 512e disks

• Hosting virtual hard disks on native 4-KB disks

Capabilities

• Reduces the impact of 512e disks on the virtual hard disk stack

• Workloads complete more quickly

Benefits

Virtual hard disk 4-KB block (blue) not aligned with physical 4-KB boundary


QoS minimum bandwidth

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Relative minimum bandwidth Strict minimum bandwidth

Bandwidth oversubscription

Features• Establishes a bandwidth floor• Assigns specified bandwidth for

each type of traffic• Helps to ensure fair sharing

when there’s congestion• Can exceed quota when there’s

no congestion

Two mechanisms• Enhanced packet scheduler

(software)• Network adapter with DCB

support (hardware)


QoS minimum bandwidth

Benefits of QoS minimum bandwidth

• Need fewer expensive network adapters

• Make best use of 10-GbE hardware

Benefits for public cloud hosting providers

• Manage performance levels for SLAs

• Deliver minimal impact or compromise in shared infrastructure

Benefits for enterprises • Deliver predictable application

performance• Encourage the use of virtualization


High availability

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Hyper-V ReplicaIncremental

backups

Hyper-V clustering

enhancementsNIC Teaming

Data centers and customers can increase resilience to failures.


Incremental backups

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For virtual machines• Allows incremental backup of virtual hard

disks• Is Volume Shadow Copy Service (VSS)-aware• Backs up the Hyper-V environment• Requires no backup agent inside virtual

machines

Benefits• Saves network bandwidth• Reduces backup sizes• Saves disk space• Lowers backup cost


Hyper-V Replica

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New feature

• Replicates Hyper-V virtual machines from a primary to a Replica site

Benefits

• Affordable in-box business continuity and disaster recovery solution

• Failure recovery in minutes

• More secure replication across network

• No need for storage arrays

• No need for other software replication technologies

• Automatic handling of live migration

• Simpler configuration and management


NIC Teaming

• Uses virtual network adapters

• Can connect to more than one virtual switch

• Is designed to maintain connectivity if one switch disconnects

• Can support up to 32 network adapters in a team

NIC Teaming in a Hyper-V environment

• Windows PowerShell

• NIC Teaming Server Manager configuration UI

Management

• Higher reliability against failure

• Better throughput

Benefits

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Example: SR-IOV

• Multiple parallel network connections

• Increase throughput

• Provides redundancy in case of link failure

What is NIC Teaming?


Hyper-V clustering enhancements

Enables high-availability solutions for many workloads

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Protects against:

• Application and service failure

• System and hardware failure

• Site failure (natural disaster, power outages, or connectivity outages)

Clustering benefits

Lets you increase availability and enable access to server-based applications during planned and unplanned downtime.



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Guest clustering via Fibre Channel

• Connects to Fibre Channel directly from within virtual machines

• Virtualizes workloads that:– Use direct access to Fibre Channel storage– Cluster guest operating systems over Fibre Channel

New features

Clustered live migration enhancements

• Uses higher network bandwidths (up to 10 GB) to complete migrations faster

Encrypted cluster volumes

• Uses BitLocker Drive Encryption to enable better physical security for deployments outside of secure data centers

Cluster Shared Volume (CSV) 2.0

• Simplifies the configuration and operation of virtual machines

• Provides greater security and performance

• Integrates with storage arrays for out-of-the-box replication and hardware snapshots



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Transparent failover

• Moves file shares between nodes with little interruption to server applications, such as:– Configuration files– Virtual hard disk files– Snapshots in file shares over the SMB2 protocol

New features

Hyper-V application monitoring

• Hyper-V and failover clustering work together to bring higher availability to workloads that do not officially support clustering.

• Monitors services and event logs inside the virtual machine.

• Determines health of virtual machine’s key services.



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In-box live migration queuing

• Lets you perform large multiselect actions to queue live migrations of multiple virtual machines

New features

Virtual machine failover prioritization

• Lets you configure virtual machine priorities

• Controls the order in which virtual machines fail over or start

Affinity (and anti-affinity) virtual machine rules

• Lets you configure partnered virtual machines to migrate simultaneously during failover.

– Example: Configure your SharePoint virtual machine and partnered SQL Server virtual machine to always fail over together to the same node.

• You can specify that two virtual machines cannot coexist on the same node in a failover scenario (anti-affinity rule).



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Benefits with Windows Server "8" Beta

• Extends clustered environment features to a new level

• Supports greater access to storage

• Provides faster failover and migration of nodes


Conclusion

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Flexible infrastructure,

when and where you

need it


High availability


Windows Server "8" Beta Hyper-V is a more dynamic virtualization platform.

it camp ws8 beta hyper-v

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