Deployment Guide

For a system with 4-port SFP+ controller modules (CNC), all host ports ship from the factory in Fibre Channel (FC) mode. However, the
ports can be configured as a combination of FC or iSCSI ports. FC ports support use of qualified 16 Gb/s SFP transceivers. You can set
FC ports to auto-negotiate the link speed or to use a specific link speed. iSCSI ports support use of qualified 10 Gb/s SFP transceivers.
For information about setting host parameters such as FC port topology, and the host-port mode, see the Dell EMC PowerVault ME4
Series Storage System CLI Reference Guide.
NOTE: If the current settings are correct, port configuration is optional.
Configure FC ports
Perform the following steps to configure FC ports:
1. In the Welcome panel, select System Settings, and then click the Ports tab.
2. On the Port Settings tab, set the port-specific options:
• Set the Speed option to the proper value to communicate with the host, or to auto, which auto-negotiates the proper link speed.
Because a speed mismatch prevents communication between the port and host, set a speed only if you need to force the port to
use a known speed.
• Set the Connection Mode to either point-to-point or auto:
○ point-to-point – Fibre Channel point-to-point.
○ auto – Automatically sets the mode based on the detected connection type.
3. Perform one of the following:
• To save your settings and continue configuring your system, click Apply.
• To save your settings and close the panel, click Apply and Close.
A confirmation panel appears.
4. Click OK.
Configure iSCSI ports
Perform the following steps to configure iSCSI ports:
1. In the Welcome panel, select System Settings, and then click the Ports tab.
2. On the Port Settings tab, set the port-specific options:
• IP Address. For IPv4 or IPv6, the port IP address. For corresponding ports in each controller, assign one port to one subnet and the
other port to a second subnet. Ensure that each iSCSI host port in the storage system is assigned a different IP address. For
example, in a system using IPv4:
○ Controller A port 0: 10.10.10.100
○ Controller A port 1: 10.11.10.120
○ Controller B port 0: 10.10.10.110
○ Controller B port 1: 10.11.10.130
○ Controller A port 2: 10.10.10.200
○ Controller A port 3: 10.11.10.220
○ Controller B port 2: 10.10.10.210
○ Controller B port 3: 10.11.10.230
• Netmask: For IPv4, subnet mask for assigned port IP address.
• Gateway: For IPv4, gateway IP address for assigned port IP address.
• Default Router: For IPv6, default router for assigned port IP address.
3. In the Advanced Settings section of the panel, set the options that apply to all iSCSI ports:
Table 4. Options for iSCSI ports
Enable Authentication (CHAP) Enables or disables use of Challenge Handshake Authentication Protocol. Enabling or disabling
CHAP in this panel updates the setting in the Configure CHAP panel (available in the Hosts topic
by selecting Action > Configure CHAP. CHAP is disabled by default.
Link Speed
• auto—Auto-negotiates the proper speed.
• 1 Gb/s—Forces the speed to 1 Gbit/sec, overriding a downshift that can occur during auto-
negotiation with 1 Gb/sec HBAs. This setting does not apply to 10 Gb/sec SFPs.
Perform system and storage setup 37