HP StorageWorks XPath OS 7.4.X Administrator Guide (AA-RVHDD-TE, February 2006)

XPath OS 7.4.x administrator guide 29
DLS is enabled by default. When DLS is enabled, routing changes can affect working ports. For example,
if an Fx_Port goes down, another Fx_Port might be rerouted from one E_Port to a different E_Port. The
switch minimizes the number of routing changes, but some are necessary to achieve optimal load sharing.
If DLS is disabled (using the dlsReset command), load-sharing route determination is performed only at
boot time or when an Fx_Port comes up. Optimal load sharing is rarely achieved with DLS disabled.
Viewing the current DLS setting
1. Log in as admin.
2. Issue the dlsShow command to view the current DLS setting.
One of the following messages appears:
• DLS is set. The DLS option is turned on. Load sharing is reconfigured with every change in the
fabric.
• DLS is not set. The DLS option is turned off. Load sharing is reconfigured only when the switch
is rebooted or an Fx_Port comes up.
Enabling DLS
1. Log in as admin.
2. Issue the dlsSet command to enable dynamic load sharing when a fabric change occurs:
Disabling DLS
1. Log in as admin.
2. Issue the dlsReset command:
Load-sharing path determination is performed only at boot time or when an FX_Port comes up.
Viewing routing information
You can view routing path information for the fabric, and you can view routing information through a port
to a destination domain (called unicast routing).
Viewing routing path information
1. Log in as admin.
router:admin> dlsset
DLS feature enabled
router:admin>
router:admin> dlsreset
DLS feature disabled