Dell SE500W manual Network Interfaces, Cluster Nodes, Preventing Network Failure

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Preventing Network Failure

The Cluster Service uses all available private and public-and-private networks for internal communication. Configure multiple networks as private or public-and-private to protect the cluster from a single network failure. If there is only one such network available and it fails, the cluster nodes stop communicating with each other. When two nodes are unable to communicate, they are partitioned, and the Cluster Service automatically shuts down on one node. While this shutdown guarantees the consistency of application data and the cluster configuration, it can make cluster resources unavailable.

For example, if each node has only one network adapter, and the network cable on one of the nodes fails, each node (because it is unable to communicate with the other) attempts to take control of the quorum disk. There is no guarantee that the node with a functioning network connection will gain control of the quorum disk. If the node with the failed network cable gains control, the entire cluster is unavailable to network clients. To avoid this problem, ensure that all nodes have at least two networks and are configured to use both networks for the private network (internal communications).

Node-to-Node Communication

The Cluster Service does not use public-only networks for internal communication. For example, a cluster has Network A configured as private and Network B configured as public. If Network A fails, the Cluster Service does not use Network B because it is public; the nodes stop communicating, and one node terminates its Cluster Service.

Network Interfaces

The Microsoft® Windows® operating system keeps track of all network adapters in a server cluster. This tracking system allows you to view the state of all cluster network interfaces from a cluster management application, such as Cluster Administrator.

Cluster Nodes

A cluster node is a system in a server cluster that has a working installation of the Windows operating system and the Cluster Service.

Cluster nodes have the following characteristics:

•Every node is attached to one or more cluster storage devices. Each cluster storage device attaches to one or more disks. The disks store all of the cluster's configuration and resource data. Each disk can be owned by only one node at any point in time, but ownership can be transferred between nodes. The result is that each node has access to all cluster configuration data.

•Every node communicates with the other nodes in the cluster through one or more network adapters that attach nodes to networks.

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Using MSCS

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Contents Installation and Troubleshooting Guide Abbreviations and Acronyms Contents Updating the Windows Driver for the Perc RAID Adapter Assigning Static IP Addresses to Your ClusterNaming and Formatting Drives on Configuring Microsoft Windows Server Installing and Configuring Microsoft WindowsMicrosoft Cluster Administrator Configurations Using Non-Dell Products Setting Advanced Resource PropertiesConfiguring Active and Passive Cluster Nodes Uninstalling Mscs From Clusters RunningPowerEdge Cluster SE500W Solution Data Form Changing the Cluster Service Account PasswordMaximum Configuration of the PowerEdge Private Network Hardware Components Power Cabling Example With Two PowerBus Configuration Switch Modes Important System Warning Applications and Hardware RequiringObtaining More Information IntroductionIntended Audience IntroductionVirtual Servers and Resource Groups Obtaining Technical Assistance OverviewQuorum Resource Shared Storage Systems PowerEdge Cluster SE500W SolutionOperating Systems Storage System Configuration, at least three virtual disks are recommendedEdition X64 Edition Hardware and Software Technologies Cluster ComponentsSystem Requirements Scsi cablesCluster storage Cluster NodesCluster Node Requirements Component Minimum Requirement Other Documents You May Need Cabling Your Cluster Hardware Cabling for the Cluster SE500W SolutionCabling Your Cluster Hardware Redundant power supply Node Shared storage connector BPin connector Shared storageAdapter Channel 0 Perc RAID adapter channel Pin connectors Pin connectors Cabling Your Cluster HardwareCabling Your Public and Private Networks Network Connections DescriptionCabling Your Public Network Private network adapter Cluster nodeNIC Teaming Cabling Your Private NetworkPrivate Network Hardware Components and Connections Method Power Cabling for the PowerEdge Cluster SE500W Solution Cabling the Mouse, Keyboard, and MonitorPage Power Cabling Example With One Power Supply in the Systems Power Cabling Example With Two Power Supplies in the Systems Cabling Your Cluster Hardware Before You Begin Preparing Your Systems for ClusteringPreparing Your Systems for Clustering Installation Overview Configuring the Cluster Nodes as Domain Controllers Selecting a Domain ModelConfiguring the Internal Drives in Your Cluster Nodes Installing and Configuring the Windows Operating SystemPreparing Your Systems for Clustering Configuring Windows Networking Dell recommends using static IP addresses for your cluster Configuring IP Addresses for the Private NetworkHas been corrected in Windows Server Preparing Your Systems for Clustering Configuring the Internet Connection Firewall Verifying Cluster Network CommunicationsInstalling the Perc RAID Adapters Updating the Windows Driver for the Perc RAID AdapterClustering PowerVault Storage Systems Installing and Configuring the Shared Storage SystemSplit-Bus Module Primary Split-bus ModulePage EMM serves two primary functions in your storage system Enclosure Management Module EMMPreparing the Perc RAID Adapter for Clustering Enabling the Cluster Mode Using the Perc RAID Adapter Setting the Scsi Host Adapter IDsConfiguring and Managing Virtual Disks Naming and Formatting Drives on the Shared Storage SystemAssigning Drive Letters and Mount Points EmailData Installing and Configuring Mscs Verifying Cluster ReadinessConfiguring Cluster Networks Running Windows Creating the Quorum ResourceConfiguring Cluster Networks Running Windows Server Preparing Your Systems for Clustering Adding Cluster Nodes Using the Advanced Configuration Option Verifying Mscs Operation Installing Applications in the Cluster GroupVerifying Cluster Functionality Verifying Cluster Resource AvailabilityTroubleshooting Failed Resources Obtaining More InformationLaunching Cluster Administrator on a Cluster Node Installing Your Cluster Management SoftwareMicrosoft Cluster Administrator Running Cluster Administrator on a Remote ConsoleLaunching Cluster Administrator on a Remote Console Cluster Objects Using MscsUsing Mscs Cluster NetworksPreventing Network Failure Network InterfacesCluster Nodes Node-to-Node CommunicationForming a New Cluster Joining an Existing ClusterGroups Cluster ResourcesSetting Resource Properties Dependent ResourcesSetting Advanced Resource Properties Configuring Resource DependenciesCluster Resources and Required Dependencies Resource Parameters Resources and Configurable ParametersQuorum Disk Quorum Resource Resource Failure Adjusting the Threshold and Period Values Creating a New ResourceDeleting a Resource File Share Resource TypeFailover and Failback Configuring Active and Passive Cluster NodesFailover Using Mscs Failback Using Mscs Upgrading Your System to a Cluster Configuration Certification RequirementsUpgrading Your System to a Cluster Configuration Configurations Using Non-Dell ProductsCompleting the Upgrade Upgrading Your Operating SystemPerforming a Rolling Upgrade Before you perform a rolling upgradeUpgrading Node Adding a Network Adapter to a Cluster Node Maintaining Your ClusterMaintaining Your Cluster IP address Maintaining Your Cluster Removing Nodes From Clusters Running Windows Server Running chkdsk /f on a Quorum DiskRecovering From a Corrupt Quorum Disk Replacing a Cluster-Enabled Dell Perc RAID Adapter Replacing a Cluster NodeWhere clustername is the name of your cluster Reformatting a Cluster Disk Maintaining Your Cluster Rebuilding Operation in Dell OpenManage Utilities Maintaining Your Cluster Maintaining Your Cluster Troubleshooting TroubleshootingPerc 3/DC Bios Troubleshooting Administrator’s Guide for instructions on Viewer, see the Microsoft Cluster ServiceSupport.microsoft.com Troubleshooting Troubleshooting Abbreviations and Acronyms Abbreviations and AcronymsGUI NLB RAM Abbreviations and Acronyms Cluster Data Form PowerEdge Cluster SE500W Solution Data FormCluster Data Form Node Server Type Cluster Name Service Tag Number Server Name System StorageComponent Storage Dell PowerVault Description of Installed ItemsDrive letters, RAID types, applications/data Storage, internal drivesW . d e l l . c o m s u p p o r t . d e l l . c o m Index IndexMscs Shared storage system configuring, 39 enclosure management Replacing a cluster-enabledcardVirtual disks, 45 using dynamic disks Index PowerVault 22 xS Back Panel Example of Network Cabling ConnectionPage Table A-1 General Cluster Troubleshooting
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