HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Command Reference Guide (AA - Page 163

dlsSet Enables the dynamic load sharing (DLS) option. Synopsis dlsset Availability admin Description Use this command to turn on DLS when a fabric change occurs. Routing is generally based on the incoming port and the destination domain. This means that all the traffic coming in from a port (either an E_Port or an Fx_Port) directed to the same remote domain is routed through the same output E_Port. To optimize fabric routing, when there are multiple equivalent paths to a remote switch, traffic is shared among all the paths. Load sharing is recomputed when a switch is booted up or every time a change in the fabric occurs. A change in the fabric is defined as an E_Port going up or down or an Fx_Port going up or down. During load sharing, recomputation, existing routes might be moved to maintain optimal balance. This can cause momentary frame loss along these routes. In contrast, if DLS is turned off (using dlsReset), load sharing calculations are used only to place new routes. Once placed, existing routes are never moved from one output E_Port to another unless the original output E_Port is no longer a recognized path to the remote domain. Optimal balance is rarely achieved with this setting. NOTE: DLS is not supported in certain routing policies. See aptPolicy for more information on routing policies. Operands none Examples To enable the dynamic load sharing option: switch:admin> dlsset switch:admin> dlsshow DLS is set See also aptPolicy dlsReset dlsShow iodReset iodSet iodShow uRouteShow topologyShow Fabric OS 5.x command reference guide 163