One iSCSI Network with Dual 1 GbE 4-Port Storage Controllers
Use one iSCSI network to prevent an unavailable port or storage controller from causing a loss of
connectivity between the host servers and a storage system with dual 1 GbE 4-port storage controllers.
About this task
This configuration includes two fault domains, one iSCSI network, and one Ethernet switch. Each storage
controller 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 same
fault domain on the same storage controller.
• If a storage controller becomes unavailable, the virtual ports on the offline storage controller move to
the physical ports on the other storage controller.
NOTE: This configuration is vulnerable to switch unavailability, which results in a loss of connectivity
between the host servers and the storage system.
Steps
1.
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 switch
3.
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 switch
Connect the Front End
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