iSCSI Optimization Commands
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iSCSI Optimization Commands
NOTE: The iSCSI commands are only supported on the PCM6348, PCM8024, and
PCM8024-k switches. The commands will have different capabilties depending on
the switch. CLI commands and Dell OpenManage Switch Administrator pages are
not available for other switch models.
iSCSI Optimization provides a means of performing configuration specific to
storage traffic and optionally giving traffic between iSCSI initiator and target
systems special Quality of Service (QoS) treatment.
iSCSI Optimization is best applied to mixed-traffic networks where iSCSI
packets constitutes a portion of overall traffic. In these cases, the assignment
of iSCSI packets to non-default CoS queues can provide flows with lower
latency and avoid queue resource contention.
If iSCSI frames comprise most of the traffic passing through the switch, the
system provides optimal throughput when all traffic is assigned to the default
queue. An example of this situation is a Storage Area Network (SAN) where
the switch is dedicated to interconnecting iSCSI Targets with Initiators.
Using the default queue for this homogenous traffic provides the best
performance in traffic burst handling and the most accurate 802.3x Flow
Control Pause Frame generation. In these cases, the application of QoS
treatment other than the default policy may result in less overall throughput
or more packet loss.
Configuration consists of globally setting the MTU size to jumbo frames and
enabling flow control. By default, iSCSI optimization is disabled and iSCSI
QoS treatment is disabled.
LLDP is used to detect the presence of EqualLogic storage arrays. When
iSCSI optimization is enabled, and LLDP detects an EQL array on a port,
that port configuration is changed to enable portfast and disable unicast
storm control. Configuration changes appear in the running config and are
not removed by disabling the feature or disconnecting the EQl array.
2CSPC4.XModular-SWUM200.book Page 513 Thursday, March 10, 2011 11:18 AM
Summary of Contents for PowerEdge M420
Page 161: ...Command Groups 161 ...
Page 162: ...162 Command Groups ...
Page 216: ...216 Layer 2 Commands ...
Page 290: ...290 Auto VoIP Commands ...
Page 310: ...310 Data Center Bridging Commands ...
Page 316: ...316 DHCP Layer 2 Relay Commands Example console config dhcp l2relay vlan 10 340 345 ...
Page 324: ...324 DHCP Management Interface Commands ...
Page 340: ...340 DHCP Snooping Commands ...
Page 354: ...354 Dynamic ARP Inspection Commands ...
Page 405: ...Ethernet Configuration Commands 405 Name test ...
Page 406: ...406 Ethernet Configuration Commands ...
Page 426: ...426 Ethernet CFM Commands ...
Page 486: ...486 IPv6 Access List Commands ...
Page 497: ...IPv6 MLD Snooping Commands 497 Vlan Ipv6 Address Ports ...
Page 498: ...498 IPv6 MLD Snooping Commands ...
Page 512: ...512 IP Source Guard Commands ...
Page 524: ...524 iSCSI Optimization Commands ...
Page 532: ...532 Link Dependency Commands ...
Page 572: ...572 Port Aggregator Commands ...
Page 756: ...756 VLAN Commands ...
Page 762: ...762 Voice VLAN Commands ...
Page 796: ...796 802 1x Commands ...
Page 798: ...798 Layer 3 Commands ...
Page 842: ...842 DHCP Server and Relay Agent Commands ...
Page 868: ...868 DVMRP Commands ...
Page 888: ...888 IGMP Commands ...
Page 896: ...896 IGMP Proxy Commands ...
Page 938: ...938 IP Routing Commands ...
Page 1012: ...1012 IPv6 Routing Commands ...
Page 1016: ...1016 Loopback Interface Commands ...
Page 1048: ...1048 Multicast Commands ...
Page 1064: ...1064 IPv6 Multicast Commands RP Address 3001 1 origin BSR ...
Page 1142: ...1142 OSPF Commands ...
Page 1202: ...1202 OSPFv3 Commands ...
Page 1212: ...1212 Router Discovery Protocol Commands ...
Page 1228: ...1228 Routing Information Protocol Commands ...
Page 1260: ...1260 Virtual Router Redundancy Protocol Commands ...
Page 1262: ...1260 Utility Commands ...
Page 1272: ...1270 Auto Install Commands ...
Page 1306: ...1304 Captive Portal Commands ...
Page 1316: ...1314 CLI Macro Commands ...
Page 1334: ...1332 Clock Commands ...
Page 1340: ...1338 Command Line Configuration Scripting Commands ...
Page 1362: ...1360 Configuration and Image File Commands ...
Page 1363: ...Configuration and Image File Commands 1361 ...
Page 1364: ...1362 Configuration and Image File Commands ...
Page 1412: ...1408 Password Management Commands ...
Page 1436: ...1432 RMON Commands ...
Page 1476: ...1472 Sflow Commands ...
Page 1536: ...1532 Syslog Commands ...
Page 1602: ...1598 Telnet Server Commands ...
Page 1604: ...1600 Terminal Length Commands ...
Page 1618: ...1614 User Interface Commands ...
Page 1638: ...1634 Web Server Commands ...
Page 1680: ...1676 Appendix A List of Commands ...
Page 1681: ......
Page 1682: ...www dell com support dell com Printed in the U S A ...