Hyper-V Best Practices for High-Availability with Failover - PowerPoint Presentation

Slide1
Slide2

Hyper-V Best Practices for High-Availability with Failover Clustering

Symon PerrimanSenior Technical EvangelistMicrosoft | @SymonPerriman

CDP-B335Slide3

Hyper-V Cluster Planning

Hyper-V Cluster OptimizationWindows Server 2012 R2 Clustering and Hyper-VSystem Center 2012 R2 Clustering and Hyper-V

AgendaSlide4

Hyper-V Cluster PlanningSlide5

Hardware High Availability

Servers, storage, networking, etc.Workload High AvailabilityHost Failover Clustering for VMs & RolesGuest Application High Availability

Guest Failover Clustering for apps within VMs

VM Storage High Availability

Scale Out File Server Failover Clustering

Management High Availability

System CenterSite High AvailabilityHyper-V Replica & Multi-Site Clustering

High Availability throughout the Datacenter

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center & Clustering

Multiple DatacentersSlide6

Redundancy everywhere

ServerRedundant server roles (AD, DHCP, DNS, etc.), System: Hot swapping, BMC sensors, Power protection Processor: Instruction error detection, instruction retry, lock-step processors, machine check architecture, extended precision

Memory: Windows Hardware Error Architecture (WHEA), parity bits, error correcting code, memory scrubbing, bad page offloading

Storage

Multi-Path IO (MPIO), RAID, checksums, background scrubbing, resilient file systems

Networking

Multiple networks, NIC Teaming, Load Balancing (NLB), Multi-Channel SMB

Hardware High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple DatacentersSlide7

Physical servers create a failover cluster

Survive Host CrashesVMs restarted on another nodeRestart VM CrashesVM OS restarted on same nodeRecover VM Hangs

VM OS restarted on same node

Zero Downtime Maintenance & Patching

Live migrate VMs to other hosts

Mobility & Load Distribution

Live migrate VMs to different servers to load balance

Workload High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple DatacentersSlide8

VMs create a (virtualized) failover cluster

Guest Application Health MonitoringApplication restarts or fails overDetect blue screens & user mode hangsVM network availability

Application Mobility

Guest OS needs patching or VM needs

maintenance, application moved to

the other node

Guest Application High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple DatacentersSlide9

Cluster

File Servers create a failover Cluster

Scale Out

File Server

Multiple client access points (\\SOSF)

Resilient during failover and crash

File coping can continue with automatic retries

VM Storage High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple Datacenters

Node 2

Node 1

Share2

Share1

Share2

SMB Client

\\SOFS

\\SOFS

Share1Slide10

Server

Redundant server deploymentsRun server inside a clustered VMBackup using DPM or Replicate using Hyper-V ReplicaMonitor with a SCOM Management Pack

Database

SQL Server 2012 SP1

AlwaysOn

Clustering

Replication / Mirroring / Backup to a secondary siteRun SQL inside a clustered VMBackup using DPM or Replicate using Hyper-V ReplicaMonitor with a SCOM Management Pack

Management High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple Datacenters

Advisor Cloud Service

Redundant & distributed services on Azure

App Controller, Orchestrator Web Console, Service Manager Service Catalog

Load-balance network traffic

Operations Manager Server

Highly-Available Management Group

Orchestrator Runbook Server

Primary and redundant runbooks server failover

VMM Library Server

Run a file server on a failover cluster

VMM Management Server

Run directly on a failover cluster

R2Slide11

Nodes or clusters in different physical locations

Survive the loss of an entire datacenterStretch sites over a large distanceStorage at both sites with replicationAutomatic (recommended) or manual

recovery

Synchronizes cluster, role & VM changes

Technologies

Multi-Site Clustering

Hyper-V ReplicaWindows Azure Hyper-V Recovery Manager

Site High Availability

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center

Multiple DatacentersSlide12

Also in Windows Server 2008 R2

Best of both worlds for flexibility and protection

VM high-availability & mobility between physical nodes

Application & service high-availability & mobility between VMs

Cluster-on-a-cluster does increase complexity

Mixing physical and virtual nodes is supported

Must pass Validate

Combining Host & Guest Clustering

CLUSTER

CLUSTER

Shared Storage

Guest Cluster

Shared Storage

Shared StorageSlide13

Consistent improvement map to Windows Server 2012 R2

Free Server SKU: aka.ms/HyperVserver (RTM)Enterprise-class Microsoft hypervisorCLI, remote GUI management or 3rd party add-ons

Does not include guest

OS licenses

Contains all Hyper-V &

Clustering features

8,000 VMs/clusterCluster Shared Volumes (CSV) 2All types of live migration

Microsoft Hyper-V Server 2012 R2Slide14

Choosing a Host OS SKU

Host OS is free

Licensed per

Proc

Licensed per

Proc

No guest OS licenses

2 guest OS licenses

Unlimited guest licenses

CLI & Remote Management only

Full installation

or Server Core

Full installation

or Server CoreSlide15

Cluster Validation tests (pre and post deployment)

Supports shared VHDXHeartbeat settings reconfiguredCluster database update requirementsOnly a majority of nodes must acknowledge GUM updates

Hyper-V Clusters are Different

Cluster Property

Default

Hyper-V Default

SameSubnetThreshold

5

10

CrossSubnetThreshold

520Slide16

Hyper-V Cluster OptimizationSlide17

CLUSTER

Enable VM heartbeat setting

Requires Integration Components (ICs)

installed in VM

Health check for VM OS from host

User-Mode Hangs

System Crashes

Enable VM Health Monitoring

Shared Storage

Also in Windows Server 2008 R2Slide18

‘Auto Start’ setting configures if a

VM should be automatically started on failoverGroup propertyDisabling mark groups as lower priorityEnabled by defaultDisabled VMs needs manual

restart to recover after a crash

Disable Starting Low Priority VMs

Also in Windows Server 2008 R2Slide19

‘Preferred Owners’

VMs will start on preferred host

‘Possible Owners’

VMs will start on a possible owner, only if a

preferred owner is not available

If neither a preferred or possible owner

is available, the VM will move to an

active node, but not start

Keep VMs on Preferred HostsAlso in Windows Server 2008 R2Slide20

‘Persistent Mode’ will attempt to place VMs back on the last node they were hosted on during start

Only takes affect when complete cluster is started upPrevents overloading the first nodes that startup with large numbers of VMsBetter VM distribution after

cold start

Enabled by default for VM groups

Option is hidden from GUI in 2012+

Start VMs on Preferred Hosts

Also in Windows Server 2008 R2Slide21

Also in Windows Server 2008 R2

AntiAffinityClassNames

Groups with same AACN try to avoid moving to same node

Configured by PowerShell directly on the cluster

System Center 2012 VMM has a GUI “Availability Groups”

Enables VM distribution across host nodes

Better utilization of host OS resources

ScenariosSeparate similar VMsGuest cluster nodesDCs or infrastructure serversSeparate tenetsFor affinity, use preferred ownersKeep VMs off the Same HostSlide22

Configure VM Settings

DemoSlide23

Windows Server 2012 R2 Clustering and Hyper-VSlide24

Increased scale out and scale up

4x scale over Windows Server 2008 R264-nodes in a cluster8,000 VMs in a cluster1,024 VMs per node

Cluster Scale

. . .

Scale up

Scale out

...Slide25

Cluster Validation

Faster storage validationSelect a specific LUNReplicated storage

for multi-site clusters

New Hyper-V Tests

Run when Hyper-V role is installed

Integration Components

Memory CompatibilityVirtual Switch CompatibilityHyper-V Role Enabled

Network ConfigurationStorage ConfigurationSlide26

Drain all VMs off a nodeSupports all cluster roles

Role-specific featuresLive migration or quick migration for VMs Uses VM Priority

Node Maintenance ModeSlide27

Windows

Update

Automated cluster updating

Coordinator serially updates all nodes

Windows Update Agent (WUA)

Windows Server Update Services (WSUS)

Windows Update

Workflow

Scan nodes to find which patches are needed

Identify node with fewest workloadsMove workloads or live migrate VMsCall to WUA to patch Verify patch is successfulRepeat steps 2 – 5 on next nodeRepeat on remaining nodesCluster-Aware Updating

UpdateCoordinatorSlide28

VMs live migrated to another node during shutdown

VMs moved to “Best Available Node” (most free memory)Honors VM prioritizationEnsures reboot / shutdown does not incur downtime to VMs for unknowing adminEnabled/Disabled via the

DrainOnShutdown

cluster common property

VM Drain on ShutdownSlide29

Cluster Upgrades

VMs can live migrate from 2012 to 2012 R2Need to upgrade ICs in VMsMay want to upgrade other clusters

in the stack, such as

Scale Out File Server

Other roles & VMs running on

2008 R2 use the

Copy Cluster Roles WizardMigrate to CSV disks

Storage mappingVirtual network mappingUse the same storage or

different storageSlide30

Cluster Shared Volumes (CSV) 2

Distributed access file systemNew rolesFile Server - Scale out File ServerHyper-V over SMBImproved backup, performance and resiliency

Direct I/O for more scenarios

Better VM creation and copy performance

Multi-subnet support for live migrationSlide31

Guest Cluster

Fibre Channel

Shared VHDX

SMB

iSCSI

FCoE

Host Cluster

Fibre Channel

SAS

SMB

iSCSI

FCoE

Abstract the storage infrastructure

from tenantsVM sees a shared Virtual SAS diskVMs could be on the same or different nodesShared VHDX can be stored on:Cluster Shared Volumes (CSV) on block storage

Separate Scale-Out File Server ClusterShared VHDX for Guest Clusters

WS 2012

WS 2012 R2

Fibre

Channel

P

P

iSCSI

P

P

SMB

P

P

Shared VHDX

P

VHDX

VHDXSlide32

Virtual Machine Priority

Start Order

Node Maintenance

Running Priority

Pre-emption shuts down lower priority VMs

No Auto Start

Must be restarted manually

High

Medium

Low

No

AutostartSlide33

Improved Live Migration

Concurrent Live MigrationsLive Migration Queuing (waiting)Live Migration CompressionLive Migration over RDMABest Available Node

Moves to node with most free memorySlide34

New Live Migrations

Storage Live Migration

Live Migration over SMB

“Shared Nothing” Live Migration

Hyper-V Replica

Branch Office

VHD

SAN

VHD

Network

NetworkSlide35

SiteC

SiteB

30s, 5m, or 15m replication frequencies

Variable Recovery Point Objective (RPO) for metro vs. geographically dispersed

Hyper-V Replica Enhancements

SiteA

Configurable Replication Frequencies

Near site and offsite Replication

Second hop can be equal to or greater replication frequencies than first hop

Multiple Replicas

Coordinate orchestrated replica failover across sites via System Center VMM

Windows Azure Hyper-V Recovery ManagerSlide36

Hyper-V Replica on a Cluster

Hyper-V Replica BrokerReplication agent is highly-availableReplicationStandalone to standaloneCluster to cluster

Standalone to cluster

Cluster to standalone

There is no replication within a single cluster

Multi-site clusters now use a cluster at each siteSlide37

Hyper-V Replica Broker

DemoSlide38

System Center 2012 R2 Clustering & Hyper-VSlide39

Scale management for hosts and VMs

Bare metal cluster provisioningNVGRE Gateway failover supportDeploy & patch Scale Out File Server clusters (SOFS)Windows Azure Hyper-V Recovery ManagerManage VMware and Citrix clustersSQL Clustering for databases (all System Center components)

Managing ClustersSlide40

Automates placement logic on hosts

Capacity planning improves resource utilizationSpreads VMs across nodes‘Star-Rated’ results for easy decision makingCustomizable algorithm

Intelligent PlacementSlide41

Automated cluster updating

Uses Intelligent Placement & live migrationWindows PowerShell SupportMost hosts can be patchedHosts, Host Groups, Host ClustersVMM Server, Library Server, PXE Server, Update Server

Does not patch VMs or VHDs

Virtual Machine Servicing Tool (VMST)a

Automated Update ManagementSlide42

Dynamic Optimization

No SCOM dependencyRebalances VMs across hostsLive migration

Keeps cluster balanced

Avoids VM downtime

Supports heterogeneous clusters

Managed resources

Considers CPU, memory, disk IO, network IOOptimize when above resource thresholdConsiders entire cluster

OptionsManual or automaticUser controlled frequencyConfigurable aggressivenessSlide43

Highly available VMM server

Cluster-aware VMM serverProtects against OS and VMM failuresAdmin console with reconnection logicHyper-V cluster creation & validationCreate non-HAVMs on clustered hostsAdd/remove Hyper-V clusters in

untrusted domains

VMM Server High AvailabilitySlide44

Performance & Resource Optimization (PRO)Slide45

App Controller

Deploy VMs to a clusterConfiguration ManagerMake a cluster & VMs secure and compliantData Protection ManagerBackup / restore VMs on a CSV disk

Backup during live migration

Endpoint Protection

Protect the cluster & roles from viruses & malware

System Center 2012 R2 IntegrationSlide46

Operations Manager

Monitor clusters & VMsOrchestratorAutomate actions with clusters & VMs (via VMM)Service ManagerReport cluster & VM problems

System Center Advisor

Analyze clusters and VMs for best practices

System Center 2012 R2 IntegrationSlide47

ConclusionSlide48

Hardware High AvailabilityWorkload High Availability

Guest Application High AvailabilityVM Storage High AvailabilityManagement High AvailabilitySite High Availability

High Availability throughout the Datacenter

Guest Failover Cluster

Host Failover Cluster

File Server Failover Cluster

Hardware

System Center & Clustering

Multiple DatacentersSlide49

Start with the Cloud OS today!

Microsoft Virtual Academy

aka.ms/MVA

Evaluation Edition

aka.ms/

EvalCenter

Microsoft Certifications

aka.ms/

MSCerts

TechNet Virtual Labsaka.ms/V-LabsCustomer Evidenceaka.ms/EvidenceFree eBooks

aka.ms/MVAebookSlide50

Resources

Learning

Microsoft Certification & Training Resources

www.microsoft.com/learning

Developer Network

http

://developer.microsoft.com

TechNet

Resources for IT Professionals

http://microsoft.com/technet

Sessions on Demand

http://channel9.msdn.com/Events/TechEdSlide51

Come

visit us

in the Microsoft Solutions Experience (MSE)!

Look for the

Cloud and Datacenter Platform

area

TechExpo

Hall 7For more information

Windows Server Technical Previewhttp://technet.microsoft.com/library/dn765472.aspx

Windows Server

Microsoft Azure

Microsoft Azure

http://azure.microsoft.com/en-us/

System Center

System Center Technical Preview

http://

technet.microsoft.com/en-us/library/hh546785.aspx

Azure Pack

Azure Pack

http://

www.microsoft.com/en-us/server-cloud/products/

windows-azure-packSlide52

Azure

Implementing

Microsoft Azure Infrastructure Solutions

Classroom

training

Exams

+

(Coming soon)

Microsoft Azure Fundamentals

Developing Microsoft Azure Solutions

MOC

10979

Implementing

Microsoft Azure Infrastructure Solutions

Online

training

(Coming soon)

Architecting Microsoft Azure Solutions

(Coming soon)

Architecting Microsoft Azure Solutions

Developing Microsoft Azure Solutions

(Coming soon)

Microsoft Azure Fundamentals

http://bit.ly

/

Azure-Cert

http://bit.ly

/

Azure-MVA

http://bit.ly

/

Azure-Train

Get

certified for

1/2 the price at TechEd Europe 2014!

http://bit.ly

/

TechEd-

CertDeal

2

5

5

MOC

20532

MOC

20533

EXAM

532

EXAM

533

EXAM

534

MVA

MVASlide53

TechEd Mobile app

for session evaluations

is

currently offline

SUBMIT YOUR TECHED EVALUATIONS

Fill out an evaluation via

CommNet Station/PC:

Schedule Builder

LogIn

:

europe.msteched.com/catalog

We value your feedback!Slide54

© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.