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Event Title
High Availability with High Availability with Windows Failover Windows Failover Clustering and Geo-Clustering and Geo-ClusteringClustering
Michael Otey
Senior Technical Director
Windows IT Pro
SQL Server Pro
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Event Title
What this presentation coversWhat this presentation covers
Today’s IT requirementsToday’s IT requirements The costs of downtimeThe costs of downtime Understanding Windows Failover Understanding Windows Failover
ClusteringClustering New features in Ws2012 / R2 clusteringNew features in Ws2012 / R2 clustering Geo-clustersGeo-clusters Architecting availabilityArchitecting availability Additional referencesAdditional references
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Event Title
Today’s IT RequirementsToday’s IT Requirements
AgilityAgility Meeting quickly changing business conditionsMeeting quickly changing business conditions
Reducing complexityReducing complexity Increasing automationIncreasing automation Consumerization of ITConsumerization of IT Reducing costsReducing costs
CapEXCapEX OpExOpEx
Data control and securityData control and security
Event Title
The Costs of DowntimeThe Costs of Downtime
GartnerGartner $5600 p/m$5600 p/m
$300K p/h$300K p/h
Amazon 30 minute outage in 2013Amazon 30 minute outage in 2013 $66,240 p/m $66,240 p/m
Approximately $3MApproximately $3M
Its not just dollarsIts not just dollars Customer / end user confidenceCustomer / end user confidence
ReputationReputation
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Event Title
Windows Failover Cluster OverviewWindows Failover Cluster Overview
Provides protection from unplanned Provides protection from unplanned downtimedowntime
Automated failoverAutomated failover
Server-levelServer-level
Maximum of 64 nodesMaximum of 64 nodes
Added as a Windows Server FeatureAdded as a Windows Server Feature
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Event Title
New Features in Windows Failover New Features in Windows Failover Clustering for WS2012 & R2Clustering for WS2012 & R2
Windows Server 2012Windows Server 2012 64 node cluster64 node cluster
Up from 16Up from 16
4000 VMs per cluster4000 VMs per cluster 1024 VMs per node1024 VMs per node Tunable heartbeatTunable heartbeat
Windows Server 2012 R2Windows Server 2012 R2 Shared virtual hard diskShared virtual hard disk Virtual machine drain on Virtual machine drain on
shutdownshutdown Virtual machine network Virtual machine network
health detectionhealth detection Active Directory-detached Active Directory-detached
clustercluster
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Event Title
Windows Failover ClusterWindows Failover Cluster
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Event Title
Cluster Quorum TypesCluster Quorum Types
Node MajorityNode Majority For clusters with an odd number of nodesFor clusters with an odd number of nodes Can sustain failures of half the nodes minus oneCan sustain failures of half the nodes minus one
Node and Disk MajorityNode and Disk Majority For clusters with an even number of nodesFor clusters with an even number of nodes Can sustain failures of half the nodes if the disk Can sustain failures of half the nodes if the disk
witness remains onlinewitness remains online
Node and File Share MajorityNode and File Share Majority For clusters with special configurationsFor clusters with special configurations Like Node and Disk Majority but uses Like Node and Disk Majority but uses
a file share witnessa file share witness
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Event Title
Adding the Failover Clustering Adding the Failover Clustering FeatureFeature
Server ManagerServer Manager
Add Roles and Add Roles and FeaturesFeatures
FeaturesFeatures
Failover ClusteringFailover Clustering
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Event Title
Creating the ClusterCreating the Cluster
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Failover Cluster ManagerFailover Cluster Manager Validate theValidate the
configurationconfiguration Select NodesSelect Nodes Tests:Tests:
SystemSystem
NetworkingNetworking
StorageStorage
Create ClusterCreate Cluster Select NodesSelect Nodes Cluster nameCluster name Virtual IPVirtual IP Select QuorumSelect Quorum StorageStorage
Event Title
Multi-site Failover ClustersMulti-site Failover Clusters
Disaster recoveryDisaster recovery
Protects against loss of entire locationProtects against loss of entire location
Storage synced with SAN-to-SAN Storage synced with SAN-to-SAN replicationreplication
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Event Title
Multi-site Failover ClustersMulti-site Failover Clusters
Best practicesBest practices Even number of nodeEven number of node Node and File Share Majority optionNode and File Share Majority option
Including a file share witnessIncluding a file share witness
Consider DNS replicationConsider DNS replication TTLTTL
Tuning heartbeat to adjust for latencyTuning heartbeat to adjust for latency Asynchronous storage replicationAsynchronous storage replication Using the same HBAs and NICs on each siteUsing the same HBAs and NICs on each site
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Event Title
Architecting AvailabilityArchitecting Availability
TechnologyTechnology Failover ClusteringFailover Clustering
PeoplePeople TrainingTraining
ProcessesProcesses StandardsStandards
DocumentationDocumentation
RunbooksRunbooks
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Event Title
FAQsFAQs
Q: Do I need specialized hardware for the failover Q: Do I need specialized hardware for the failover cluster nodes?cluster nodes?
A: No. You can use stand servers. Microsoft will support A: No. You can use stand servers. Microsoft will support the cluster if it passes the validation tests.the cluster if it passes the validation tests.
Q: Do all the cluster nodes have to be configured the Q: Do all the cluster nodes have to be configured the same?same?
A: NoA: No
Q: Do I need a SAN if I want to build Q: Do I need a SAN if I want to build a Windows Failover Cluster?a Windows Failover Cluster?
A: No. But you do need shared storageA: No. But you do need shared storage
Q: can you implement a Windows Q: can you implement a Windows Failover Cluster on with virtual machines?Failover Cluster on with virtual machines?
A: Yes. You can implement a Windows A: Yes. You can implement a Windows Failover Cluster at either the host Failover Cluster at either the host or guest level.or guest level.
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Event Title
Additional ReferencesAdditional References
Failover Clustering OverviewFailover Clustering Overview http://technet.microsoft.com/en-us/library/hh831579.aspxhttp://technet.microsoft.com/en-us/library/hh831579.aspx
Requirements and Recommendations for a Multi-Site Requirements and Recommendations for a Multi-Site Failover ClusterFailover Cluster
http://technet.microsoft.com/en-http://technet.microsoft.com/en-us/library/dd197575(v=ws.10).aspxus/library/dd197575(v=ws.10).aspx
Windows Server 2012: Building a Two-Node Failover ClusterWindows Server 2012: Building a Two-Node Failover Cluster http://windowsitpro.com/windows-server-2012/windows-server-http://windowsitpro.com/windows-server-2012/windows-server-
2012-building-two-node-failover-cluster2012-building-two-node-failover-cluster
Creating a Windows Server 2012 R2 Creating a Windows Server 2012 R2 Failover Cluster using Starwind SAN V8Failover Cluster using Starwind SAN V8
http://www.starwindsoftware.com/http://www.starwindsoftware.com/white-papers/white-papers/
Windows Server 2012 Geo-ClusteringWindows Server 2012 Geo-Clustering www.starwindsoftware.comwww.starwindsoftware.com
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