Reference Guide

Supported Releases 10.3.0E or later
Internet small computer system interface
iSCSI is a TCP/IP-based protocol for establishing and managing connections between servers and storage devices in a data center
network. After you enable iSCSI, iSCSI optimization automatically detects Dell EqualLogic storage arrays directly attached to switch ports.
To support storage arrays where auto-detection is not supported, manually congure iSCSI optimization using the iscsi profile-
storage name command.
iSCSI optimization enables a switch to auto-detect Dell’s iSCSI storage arrays and auto-congure switch ports to improve storage trac
throughput. The switch monitors iSCSI sessions and applies QoS policies on iSCSI trac. iSCSI optimization operates with or without
DCBX over an Ethernet network.
• iSCSI uses the current ow-control conguration by default. If you do not congure ow-control, iSCSI auto-congures ow control
settings so that receive-only is enabled and transmit-only is disabled.
• The switch monitors and tracks active iSCSI sessions, including port information and iSCSI session information.
• A user-congured iSCSI class of service (CoS) prole is applied to all iSCSI trac. Classier rules are used to direct the iSCSI data
trac to queues with preferential QoS treatment over other data passing through the switch. Preferential treatment helps to avoid
session interruptions during times of congestion that would otherwise cause dropped iSCSI packets.
648 Converged data center services