Two iSCSI Networks Using the Embedded Ethernet Ports on a StorageSystem with iSCSI Storage ControllersUse two iSCSI networks to prevent an unavailable port, switch or storage controller from causing a loss ofconnectivity between the host servers and a storage system with dual iSCSI storage controllers.About this taskThis configuration includes two fault domains, two iSCSI networks, and two Ethernet switches.• If a physical port or Ethernet switch becomes unavailable, the storage system is accessed from theswitch in the other fault domain.• If a storage controller becomes unavailable, the virtual ports on the offline storage controller move tothe physical ports on the other storage controller.NOTE: In this configuration, Storage Center system management traffic and iSCSI traffic use thesame physical network ports. For environments where the Storage Center system managementports are mixed with network traffic from other devices (such as voice, backups, or other computingdevices), separate iSCSI traffic from management traffic using VLANs.Steps1. Connect each server and Ethernet switch 1 to the corporate/management network (shown in green).2. Connect each server to both iSCSI networks.3. Connect embedded fault domain 1 (shown in orange) to iSCSI network 1.a. Connect the management port on storage controller 1 to Ethernet switch 1.b. Connect the management port on storage controller 2 to Ethernet switch 14. Connect embedded fault domain 2 (shown in blue) to iSCSI network 2.a. Connect the replication port on storage controller 1 to Ethernet switch 2.b. Connect the replication port on storage controller 2 to Ethernet switch 2.Figure 72. Two iSCSI Networks using the Embedded Ethernet Ports on Dual iSCSI Storage Controllers1. Corporate/management network 2. Server 13. Server 2 4. Ethernet switch 1 (fault domain 1)Connect the Front-End Cabling 87
