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Restoring in-order delivery of frames, Using dynamic load-sharing – HP StorageWorks MSA 2.8 SAN Switch User Manual

Page 66

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Basic Switch Management

66

Fabric OS Procedures Version 3.1.x/4.1.x User Guide

Restoring In-order Delivery of Frames

To restore the default In-order delivery setting (which allows frames to be
delivered out-of-order during topology changes for faster delivery):

1. Log into the switch as the admin user.

2. Enter the

iodreset

command at the command line.

Example:

Using Dynamic Load-Sharing

Optimal load sharing is rarely achieved with DLS disabled. If DLS is turned on
(using

dlsset

), routing changes can affect working ports. For example, if an

Fx_Port goes down, another Fx_Port may be rerouted from one E_Port to a
different E_Port. The switch minimizes the number of routing changes, but some
are necessary in order to achieve optimal load sharing.

If DLS is turned off (using

dlsreset

), load sharing is performed only at boot

time or when an Fx_Port comes up.

1. Log in to the switch as admin.

2. Enter 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 only

reconfigured when the switch is rebooted or an Fx_Port comes up.

3. Enter the

dlsSet

command to enable Dynamic Load Sharing when a

fabric change occurs.

4. Enter the

dlsReset

command to disable Dynamic Load Sharing.

Load sharing is performed only at boot time or when an Fx_Port comes up.

switch:admin> iodreset

done.

switch:admin>