Ronen Gabbay Microsoft Regional Director Yside / Hi-Tech College

High availability with server 2008 Server 2008 Network Load Balancing Setting up server 2008 cluster Server 2008 failover cluster capabilities Cluster 2008 quorum model Stretched cluster Migration to server 2008 Cluster Q & A Summary

Network Load Balance Windows Cluster Windows 2008 Virtualization

Support for IPV6 Multiple Dedicated IP Addresses Supports rolling upgrade from Windows 2003 to Windows Supports for Unattended NLB Installation Supports for NLB in server Core

Integrated Configuration Validation Tool Streamlined Setup & Easy Management New HA Role Wizard Improved Security Enhanced Quorum Model Network Enhancements & Stretched Clusters

Testing Tool Built into the Product Catch Hardware Configuration Problems Runs each time a Cluster is Built Can be used after the Cluster is up for diagnostics Replace the Cluster HCL in server 2008

OS Binary Consistency Architecture Configuration Correct and Same OS version Same Hot fix and Service Pack level Same CPU architecture Consistent Domain membership Analysis of unsigned drivers Storage HBA’s and Networking NIC’s Devices

Infrastructure Storage Network Shared Storage Persistent Reservation functionality and compliance Disk I/O latencies Each NIC has different IP address Network I/O latencies Failover simulation Functionality Inter-Cluster Communication Shared disks accessible from all machines and uniquely identifiable

The Validate tool is the 1 st menu step Setup is simplified and Intuitive Create a 16 node cluster in one step Simple Validation Fast

Setting Up the Cluster has never been so easy

Majority Based Cluster Membership Fully Configurable who gets Voted No Quorum Dependency In case of quorum disk failure no Cluster failure New Hybrid Model A combination of legacy MNS and Shared Disk Quorum Majority of Nodes with the Witness based Quorum No Single Point of failure can survive loss of the Quorum Disk

New majority based quorum model Majority of Nodes based quorum Disk is optional witness to have a vote in deciding majority 3 total votes, with 2 needed for majority So the Cluster can survive the loss of any 1 vote Shared Storage Device gets 1 vote Vote Vote Vote Each node counts as 1 vote

Only Nodes get votes 3+ Node votes without Shared Storage vote Majority of votes needed to operate cluster No shared disk vote Replicated Storage Devices Vote

Only Disk gets a vote Nodes have no votes Quorum disk is the master Cluster stays up even if only 1 node can talk to the disk Achieves same behavior as legacy quorum model Shared Storage Device is master Vote

File Share Witness allows a 2-node cluster with no shared disk Majority of Nodes + Witness based quorum Excellent solution for GeoClusters Witness could reside at a 3rd Site Single file server could serve as the Witness for multiple clusters File Share on an independent server Vote Vote Witness Each node counts as 1 vote

No More Cluster Service User Account The Cluster runs with Local System Account with low privileges No Account Password Management More Resilient for Configuration Issues

Simplified Setup with HA Role Wizard Integrated with Windows Explorer Create Share like a Standalone Server Fast Failover Major Performance improvement in brining the File Server resource online and offline Minimum downtime for large amount of file shares

Tight integration of Hyper-V with Clustering Wizards for creating highly available VM’s New resource type to enable Quick Migrations No more clunky scripts

Cluster is available with Window Core Support for : File Services (include DFS), Print, DHCP, WINS and Virtualization Less Serviceability that is more availability No Graphic User Interface Managed Locally using the Cluster.exe CLI Managed Remotely using the Cluster MMC Install Using Start / w ocsetup FailoverCluster-Core

Integrated with new Server 2008 TCP/IP Stack Full IPv6 Support Native IPv6 support for client access, native and tunnels Inter-node communication with IPv6 IPSec improvements for quick failover DHCP Support for IPv4 Resources Obtain cluster IP address from a DHCP server Relieves management pain of static IP’s

But businesses are now demanding more! Stretching Nodes across the river used to be good enough…

No More Single-Subnet Limitation Allow cluster nodes to communicate across network routers No more having to connect nodes with VLANs! Configurable Heartbeat Timeouts Increase to Extend Geographically Dispersed Clusters over greater distances Decrease to detect failures faster and take recovery actions for quicker failover

Exchange CCR Replication Mechanism Site A Site B WAN Site C SANSAN SANSAN \\Foo\Cluster1 Complete resiliency and automatic recovery from the loss of any 1 site File Share Witness

Cluster Migration Tool Will assist migration of a cluster configuration from one cluster to another Copies resources and cluster configurations from one cluster to another No Mixed Version Compatibility Server 2008 node and Win2003 node can not be in the same cluster at the same time No rolling upgrades

All nodes running Windows Server 2003 Group owned by Node 1 hosting a IP Address, Network Name, Physical Disk, and File Share resources Windows Server 2003 Single Cluster IPNameDisk File Share

Evict Node 2 from the Windows 2003 cluster Perform clean install of Server 2008 on Node 2 Create an independent single node cluster with a new Cluster Name Longhorn 2003 Two separate Clusters IPNameDisk File Share

Run the Cluster Migration Wizard on Node 2 Designate Node 2 as target and Node 1 as source Perform a group by group copy of resources Groups are created in an Offline state ResourcesOnline IPNameDisk File Share IPNameDisk ResourcesOffline

Longhorn Cluster is pre-staged and ready for migration Bring group Offline on Node 1 Bring group Online on Node 2 ResourcesOffline IPNameDisk File Share IPNameDisk ResourcesOnline

Install Server 2008 on Node 1 Join Node 1 to the existing cluster with Node 2 Resources can now be failed back and forth Migration is complete! IPNameDisk File Share ResourcesOnline Single Cluster

© 2007 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS SUMMARY.

High availability with server 2008 Server 2008 Network Load Balancing Setting up server 2008 cluster Server 2008 failover cluster capabilities Cluster 2008 quorum model Stretched cluster Migration to server 2008 Cluster