Windows Server 2008 R2High Availability

Steve Evanshttp://SerkTools.com

• Microsoft MVP, Directory Services• Blog – http://SerkTools.com• Twitter - @scevans• SerkTools (http://SerkTools.com)– Content Creation/Delivery• Screencast, Whitepapers, Blogging, Events

– Consulting• Microsoft IT Infrastructure (Active Directory, SQL,

SharePoint, Exchange, Identity, etc)

Steve Evans

Stand Alone

Application

Data

Free

Simple

Good Enough?

Application Redundancy

Application

Data

Application

Data

AD/DNS/SMTP

Protocol Support

Perfect!

Load Balancer

Application

Data

Application

Data

Load Balancer

Web Servers

Remote Desktop Services

App Support Helps

Fail Over Clustering

Application

Data

Application

Data

File Services/SQL

Shared Storage

Complicated

Expensive

No Majority: Disk Only

Shared Volume

Single Point of Failure

Old School == BAD!

Cluster Config

Node Majority

Each Node Gets 1 Vote

Cluster Requires Majority

Cluster Config

Cluster Config

Cluster Config

Node & Disk Majority

Shared Volume

Shared Disk can have 1 voteEven # of Nodes

Cluster Config

Multi Site Clustering

Dedicated Volume

Dedicated VolumeReplication

File Share Witness

VERY Complicated

Replication by 3rd Party

Cloud for File Share Witness?

File Server Cluster

vol0

vol1

vol2

Cluster Group Type: DFS RootNetwork Name: serk-file

Disk: vol0IP Address

Cluster Group Type: File ServerNetwork Name: serk-file-01

File Share: share$Disk: vol1IP Address

Cluster Group Type: File ServerNetwork Name: serk-file-02

File Share: share$Disk: vol2IP Address

DFS Client Experience

Hyper-V Live Migrate

Guest Level Clustering

Application Agnostic

Simplified Guests

PowerShell Support

Top Windows Failover cmdlets

Add-ClusterDiskAdd/Remove-ClusterNodeAdd/Remove-ClusterGroupGet/Set-ClusterQuorom

Get/Set-ClusterLogMove-ClusterGroupNew-ClusterTest-Cluster

• Microsoft MVP, Directory Services• Blog – http://SerkTools.com• Twitter - @scevans• SerkTools (http://SerkTools.com)– Content Creation/Delivery• Screencast, Whitepapers, Blogging, Events

– Consulting• Microsoft IT Infrastructure (Active Directory, SQL,

SharePoint, Exchange, Identity, etc)

Steve Evans