Dell PowerVault ME4 Series Storage System Deployment Guide

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 1. 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.
   Enable Jumbo Frames	Enables or disables support for jumbo frames. Allowing for 100 bytes of overhead, a normal frame can contain a 1400-byte payload whereas a jumbo frame can contain a maximum 8900-byte payload for larger data transfers. NOTE:Use of jumbo frames can succeed only if jumbo-frame support is enabled on all network components in the data path.
   iSCSI IP Version	Specifies whether IP values use Internet Protocol version 4 (IPv4) or version 6 (IPv6) format. IPv4 uses 32-bit addresses. IPv6 uses 128-bit addresses.
   Enable iSNS	Enables or disables registration with a specified Internet Storage Name Service server, which provides name-to-IP-address mapping.
   iSNS Address	Specifies the IP address of an iSNS server.
   Alternate iSNS Address	Specifies the IP address of an alternate iSNS server, which can be on a different subnet. CAUTION:Changing IP settings can cause data hosts to lose access to the storage system.

4. 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 is displayed.
5. Click Yes to save your changes. Otherwise, click No.