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Administrator Guide

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Table Of Contents
Congure Data Center Bridging
Ensure that you have properly congured your environment (switch fabric) for all DCB-enabled devices, according to the
requirements described in the following section.
Requirements
For DCB to function correctly, your conguration must meet the following requirements:
• All group members must be 10Gb arrays.
• All group members must be running PS Series rmware version 6.0 or later.
• Initiator and target devices, as well as all the network switches between the initiators and the targets, must support DCB. All
devices must be congured for DCB from end to end, including:
– From the host’s CNA card (edge-port) to the network switch
– From the network switch to the array (edge-port)
– Everything else in between (if using multiple switches)
• All of the network devices, initiators, targets (if non-EQL targets), and switches in the network conguration, such as PFC
(Priority Flow Control), iSCSI TLV (Type-Length-Value), and ETS (Enhanced Transmission Selection), must be supported.
• Even if all the attached network switches fully support DCB, you must congure DCB properly on the network switches for the
conguration to work correctly.
Additional Information
Dell strongly recommends that you read the following white papers for more information about conguring DCB:
• The Data Center Bridging: Standards, Behavioral Requirements, and Conguration Guidelines with Dell EqualLogic iSCSI SANs
white paper contains information about the DCB requirements and conguration guidelines. You can download the paper from:
http://en.community.dell.com/techcenter/storage/w/wiki/4396.data-center-bridging-standards-behavioral-requirements-and-
conguration-guidelines-by-sis.aspx
• The EqualLogic DCB Conguration Best Practices white paper contains the DCB requirements for EqualLogic, to ensure that
DCB is properly enabled or disabled across all devices, and to assist with identifying and resolving basic DCB conguration issues
in the EqualLogic SAN. You can download the paper from: http://en.community.dell.com/techcenter/storage/w/wiki/
4355.conguring-dcb-with-equallogic-sans.aspx
Set the Data Center Bridging VLAN ID
To set the DCB VLAN ID for the rst time:
1. Click Group → Group Conguration.
2. Click the Advanced tab.
3. Enter the DCB VLAN ID in the VLAN ID eld; it must be a value from 0 to 4095. This value must be the same as the VLAN ID
congured in the switch for use by the iSCSI SAN. Values 0 and 1 are not recommended.
NOTE:
• The VLAN IDs on the switch must match the VLAN you specify on the group. The ports on the switch need to allow
both the old VLAN (which usually implies a VLAN ID of 0 if none has been set) and the new VLAN ID or all VLANs
(trunk mode) to enable the group to communicate with the switch.
• All group members must be 10Gb arrays and be active.
• You can also specify the DCB VLAN ID through the CLI using the grpparams dcb def-vlan-id command. See the
Dell
EqualLogic Group Manager CLI Reference Guide
for more information.
Change the Data Center Bridging VLAN ID
If your group’s DCB VLAN ID has been changed from the default value of 2, you must congure the group to use it.
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