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Figure 2-4 shows an example of a direct-attached, single cluster configuration with redundant NIC ports installed in each cluster node. Figure 2-4. Direct-Attached Cluster Configuration cluster node private network public network cluster node iSCSI connections iSCSI connections storage system Cabling Your Cluster Hardware Each cluster node attaches to the storage system using CAT5e or CAT6 LAN cables with RJ45 connectors that attach to Gigabit Ethernet NICs in the cluster nodes and the Gigabit iSCSI storage processor (SP) ports in the Dell|EMC storage system. NOTE: The connections listed in this section are representative of one proven method of ensuring redundancy in the connections between the cluster nodes and the storage system. Other methods that achieve the same type of redundant connectivity may be acceptable. Cabling a Two-Node Cluster to an AX4-5i Storage System Figure 2-5 illustrates methods of cabling a two-node direct-attached cluster to an AX4-5i storage array. 1 Connect cluster node 1 to the storage system. a Install a cable from cluster node 1 iSCSI NIC 0 (or NIC port 0) to SP-A iSCSI port 0. b Install a cable from cluster node 1 iSCSI NIC 1 (or NIC port 1) to SP-B iSCSI port 0. 2 Connect cluster node 2 to the storage system. a Install a cable from cluster node 2 iSCSI NIC 0 (or NIC port 0) to SP-A iSCSI port 1. b Install a cable from cluster node 2 iSCSI NIC 1 (or NIC port 1) to SP-B iSCSI port 1. NOTE: The cables are connected to the storage processor ports in sequential order for illustrative purposes. While the available ports in your storage system may vary, NIC 0 (or NIC port 0) and NIC 1 (or NIC port 1) must be connected to SP-A and SP-B, respectively. Cabling Your Cluster Hardware Figure 2-5. Cabling the Cluster Nodes to an AX4-5i Storage System cluster node 1 cluster node 2 01 10Gigabit Ethernet ports (2) Gigabit Ethernet ports (2) AX4-5i storage array SP-B SP-A Cabling Storage for Your iSCSI SAN-Attached Cluster An iSCSI SAN-attached cluster is a cluster configuration where all cluster nodes are attached to a single storage system or to multiple storage systems through a network using a redundant switch fabric. An iSCSI SAN-attached cluster configuration provides more flexibility, expandability, and performance than a direct-attached configuration. Figure 2-6 shows an example of a two node iSCSI SAN-attached cluster. Figure 2-7 shows an example of an eight-node iSCSI SAN-attached cluster. Similar cabling concepts can be applied to clusters that contain a different number of nodes. NOTE: The connections listed in this section are representative of one proven method of ensuring redundancy in the connections between the cluster nodes and the storage system. Other methods that achieve the same type of redundant connectivity may be acceptable. Cabling Your Cluster Hardware Figure 2-6. Two-Node iSCSI SAN-Attached Cluster cluster node cluster node iSCSI connections Gigabit Ethernet iSCSI connections Gigabit Ethernet switch switch private network public network storage system Cabling Your Cluster Hardware Figure 2-7. Eight-Node iSCSI SAN-Attached Cluster public network cluster nodes (2-8) Gigabit Ethernet switch Gigabit Ethernet switch private network storage system Cabling Your Cluster Hardware Cabling One iSCSI SAN-Attached Cluster to a Dell|EMC AX4-5i Storage System 1 Connect cluster node 1 to the iSCSI network. a Connect a network cable from iSCSI NIC 0 (or NIC port 0) to the network switch 0 (sw0). b Connect a network cable from iSCSI NIC 1 (or NIC port 1) to the network switch 1 (sw1). 2 Repeat step 1 for each cluster node. 3 Connect the storage system to the iSCSI network. a Connect a network cable from the network switch 0 (sw0) to SP-A iSCSI port 0. b Connect a network cable from the network switch 0 (sw0) to SP-B iSCSI port 1. c Connect a network cable from the network switch 1 (sw1) to SP-A iSCSI port 1. d Connect a network cable from the network switch 1 (sw1) to SP-B iSCSI port 0. Cabling Your Cluster Hardware Figure 2-8. Cabling an iSCSI SAN-Attached Cluster to the Dell|EMC AX4-5i cluster node 1 cluster node 2 sw0 sw1 AX4-5i storage system 0 1 0 1Gigabit Ethernet ports (2) Gigabit Ethernet ports (2) SP-ASP-B Cabling Your Cluster Hardware Cabling Multiple iSCSI SAN-Attached Clusters to a Dell|EMC Storage System To cable multiple clusters to the storage system, connect the cluster nodes to the appropriate iSCSI switches and then connect the iSCSI switches to the appropriate storage processors on the processor enclosure. For rules and guidelines for iSCSI SAN-attached clusters, see the Dell Cluster Configuration Support Matrices located on the Dell High Availability Cluster website at Cabling Multiple iSCSI SAN-Attached Clusters to the AX4-5i Storage System NOTE: The following procedure uses Figure 2-8 as an example for cabling additional clusters. 1 In the first cluster, connect cluster node 1 to the iSCSI network. a Connect a network cable from iSCSI NIC 0 (or ...

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