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Preparing Your Systems for Clustering 11 Test the failover capabilities of your new cluster. NOTE: For Failover Clusters configured with Windows Server 2008, you can also use the Cluster Validation Wizard. 12 Configure highly-available applications and services on your Failover Cluster. Depending on your configuration, this may also require providing additional LUNs to the cluster or creating new cluster resource groups. Test the failover capabilities of the new resources. 13 Configure client systems to access the highly-available applications and services that are hosted on your failover cluster. Installation Overview Each cluster node in the Failover Cluster must have the same release, edition, service pack, and processor architecture of the Windows Server operating system installed. For example, all nodes in your cluster may be configured with the Windows Server 2003 R2, Enterprise x64 Edition operating system. If the operating system varies among nodes, it is not possible to configure a failover cluster successfully. It is recommended that you establish server roles prior to configuring a failover cluster, depending on the operating system configured on your cluster. For a list of Dell PowerEdge systems, iSCSI NICs, recommended list of operating system variants, and specific driver and firmware revisions, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Cluster website at For more information on deploying your cluster with Windows Server 2003 operating systems, see the Dell™ Failover Clusters with Microsoft Windows Server 2003 Installation and Troubleshooting Guide located on the Dell Support website at support.dell.com. For more information on deploying your cluster with Windows Server 2008 operating systems, see the Dell Failover Clusters with Microsoft Windows Server 2008 Installation and Troubleshooting Guide located on the Dell Support website at support.dell.com. Preparing Your Systems for Clustering The following sub-sections describe steps that enable you to establish communication between the cluster nodes and your shared Dell|EMC AX4-5i storage array, and to present disks from the storage array to the cluster. The following installation procedures are discussed in the subsequent sections: • "Installing the iSCSI NICs" on page 30 • "Installing the Microsoft iSCSI Software Initiator" on page 30 • "Modifying the TCP Registry Settings" on page 31] • "Installing EMC® PowerPath®" on page 31 • "Configuring the Shared Storage System" on page 32 • "Installing and Configuring a Failover Cluster" on page 41 Installing the iSCSI NICs It is recommended that you install the latest supported version of the driver. If the NIC driver requires any service packs or hotfixes to be installed along with the operating system, install them at this time. For information about supported NICs and drivers, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Cluster website at Installing the Microsoft iSCSI Software Initiator 1 Use a web browser and go to the Microsoft Download Center website at 2 Search for iscsi initiator. 3 Select and download the latest supported initiator software and related documentation for your operating system. NOTE: For the latest supported Software Initiator version, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Cluster website at 4 Double-click the executable file. The installation wizard launches. In the Welcome screen, click Next. 5 In the following screens select the Initiator Service, Software Initiator, and Microsoft MPIO Multipathing Support for iSCSI options. Click Next to continue with the installation. Preparing Your Systems for Clustering 6 Read and accept the license agreement and click Next to install the software. 7 At the completion screen, click Finish to complete the installation. 8 Select the Do not restart now option to reboot the system after modifying the TCP/IP registry settings in the section "Configuring the Shared Storage System" on page 32. Modifying the TCP Registry Settings To modify the TCP Registry: 1 Determine the IP addresses or the DHCP IP addresses that are used for iSCSI traffic. 2 Start the Registry Editor. a Select Start> Run. b Type Regeditand click OK. 3 Locate and click the registry subkey at: HKEY_LOCAL_MACHINE> SYSTEM> CurrentControlSet> Services> Tcpip> Parameters> Interfaces 4 Click each interface GUID associated with the iSCSI networks, and perform the following steps: a Select Edit> New> DWORD value. b Name the new value TcpAckFrequency. c Assign a value of 1. 5 Exit the Registry Editor. Installing EMC® PowerPath® EMC PowerPath detects a failed storage path and automatically re-routes I/O through an alternate path. PowerPath also provides load balancing of data from the cluster node to the storage system. To install PowerPath: 1 Insert the PowerPath...

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