One iSCSI Network with Dual 1 GbE 4-Port Storage ControllersUse one iSCSI network to prevent an unavailable port or storage controller from causing a loss ofconnectivity between the host servers and a storage system with dual 1 GbE 4-port storage controllers.About this taskThis configuration includes two fault domains, one iSCSI network, and one Ethernet switch. Each storagecontroller connects to the Ethernet switch using four iSCSI connections.• If a physical port becomes unavailable, the virtual port moves to another physical port in the samefault domain on the same storage controller.• If a storage controller becomes unavailable, the virtual ports on the offline storage controller move tothe physical ports on the other storage controller.NOTE: This configuration is vulnerable to switch unavailability, which results in a loss of connectivitybetween the host servers and the storage system.Steps1. Connect each server to the iSCSI network.2. Connect fault domain 1 (shown in orange) to the iSCSI network.• Storage controller 1: port 1 to the Ethernet switch• Storage controller 1: port 3 to the Ethernet switch• Storage controller 2: port 1 to the Ethernet switch• Storage controller 2: port 3 to the Ethernet switch3. Connect fault domain 2 (shown in blue) to the iSCSI network.• Storage controller 1: port 2 to the Ethernet switch• Storage controller 1: port 4 to the Ethernet switch• Storage controller 2: port 2 to the Ethernet switch• Storage controller 2: port 4 to the Ethernet switchConnect the Front End 53
