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One iSCSI Network with Dual 10 GbE 2–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 10 GbE 2–Port storage controllers .
About this task
In this configuration, there are two fault domains, one iSCSI network, and one Ethernet switch. Each
storage controller connects to the Ethernet switch using two iSCSI connections.
• If a physical port becomes unavailable, the storage system is accessed from another port on the
Ethernet switch.
• 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
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 2: port 1 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 2: port 2 to the Ethernet switch
Example
Figure 39. Storage System with Dual 10 GbE Storage Controllers and One Ethernet Switch
1. Server 1 2. Server 2
3. Ethernet switch (Fault domain 1 and fault
domain 2)
4. Storage system
5. Storage controller 1 6. Storage controller 2
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Front-End Cabling