Dell EMC AX4-5I ISCSI SAN-Attached Cluster, Private network ISCSI connections Storage system

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Figure 1-1. Direct-Attached, Single-Cluster Configuration

public network

cluster node

cluster node

private network

iSCSI connections

iSCSI connections

storage system

EMC PowerPath Limitations in a Direct-Attached Cluster

EMC PowerPath provides failover capabilities and multiple path detection as well as dynamic load balancing between multiple ports on the same storage processor. However, direct-attached clusters supported by Dell connect to a single port on each storage processor in the storage system. Because of the single port limitation, PowerPath can provide only failover protection, not load balancing, in a direct-attached configuration.

iSCSI SAN-Attached Cluster

In an iSCSI switch-attached cluster, all of the nodes are attached to a single storage system or to multiple storage systems through redundant LANs for high-availability. iSCSI SAN-attached clusters are superior to direct-attached clusters in configuration flexibility, expandability, and performance.

Figure 1-2 shows an iSCSI SAN-attached cluster.

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Introduction

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Contents Hardware Installation and Troubleshooting Guide April Contents Cluster Configuration Overview Installing the Microsoft iSCSIIntroduction IntroductionCluster Solution Cluster Hardware RequirementsCluster Node Requirements Component Minimum Requirement Cluster NodesIdentical Cluster Storage Requirements Cluster StorageRequirement NICs Dedicated to iSCSI Supported Cluster ConfigurationsEthernet Switches Dedicated to iSCSI Direct-Attached ClusterISCSI SAN-Attached Cluster Private network ISCSI connections Storage systemOther Documents You May Need Ethernet switch Storage systemPrivate network Page Cabling the Mouse, Keyboard, and Monitor Cabling the Power SuppliesCabling Your Cluster Hardware Cabling Your Cluster HardwareOne AC PDU not shown Cabling Your Cluster for Public and Private Networks Network Connections Description Cabling the Public NetworkPrivate network Cluster node NIC Teaming Cabling the Private NetworkPrivate Network Hardware Components and Connections Method Cabling the Storage Systems Cabling Storage for Your Direct-Attached ClusterCabling Your Cluster Hardware Ports Cabling Storage for Your iSCSI SAN-Attached ClusterGigabit Ethernet AX4-5i storage arrayStorage system Cabling Your Cluster Hardware Gigabit Ethernet switch Storage system Public network Private networkCabling Your Cluster Hardware AX4-5i storage system Page Obtaining More Information Storage systemsCluster Configuration Overview Preparing Your Systems for ClusteringPreparing Your Systems for Clustering Installation Overview Installing the iSCSI NICs Installing the Microsoft iSCSI Software InitiatorInstalling EMC PowerPath Modifying the TCP Registry SettingsStart the Registry Editor. a Select Start→ Run Configuring the Shared Storage System System Software window, click Upgrade Software Preparing Your Systems for Clustering Configuring the iSCSI Initiator using iSNS Preparing Your Systems for Clustering Network Interfaces NICs window Configuring the iSCSI Initiator without iSNS On the cluster node Open the Navisphere Server UtilityApply Page Installing and Configuring a Failover Cluster Preparing Your Systems for Clustering Troubleshooting TroubleshootingSupport.microsoft.com Support.microsoft.com Check all cable connections Minimum valueCluster Services Click ServicesServices window Window, click the RecoverySupport.microsoft.com Cluster Data Form Public IP Address Private IP Address Cluster Data FormNumber of Attached DAEs Virtual Disks ISCSI Configuration Worksheet ISCSI Configuration Worksheet Index Storage systems, 25 connecting to one shared storageIndex Mscs