Configuring Metric For Load Balancing; Verifying Islb Initiator Configuration; Configuring Islb Initiator Targets - Cisco MDS 9000 series Configuration Manual

Chapter 4 Configuring iSCSI
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Configuring Metric for Load Balancing

You can assign a load metric to each initiator for weighted load balancing. The load calculated is based
on the number of initiators on a given iSCSI interface. This feature accommodates initiators with
different bandwidth requirements. For example, you could assign a higher load metric to a a database
server than to a web server. Weighted load balancing also accommodates initiators with different link
speeds.
For more information on load balancing, see the
page
To configure a weight for load balancing, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# islb initiator name
iqn.1987-02.com.cisco.initiator
switch(config-iscsi-init)#
Step 3
switch(config-iscsi-init)# metric 100
Step 4
switch(config-iscsi-init)# no metric 100

Verifying iSLB Initiator Configuration

To verify the iSLB initiator configuration, use the show islb initiator configured command.
switch# show islb initiator configured
iSCSI Node name is 10.1.1.2

Configuring iSLB Initiator Targets

You can configure initiator targets using the device alias or the pWWN. You can also optionally specify
one or more of the following optional parameters:
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OL-19525-01,Cisco MDS NX-OS Release 4.2(1)
4-49.
Member of vsans: 10
Node WWN is 23:02:00:0c:85:90:3e:82
Load Balance Metric: 100
Number of Initiator Targets: 1
Initiator Target: test-targt
Port WWN 01:01:01:01:02:02:02:02
Primary PWWN VSAN 1
Zoning support is enabled
Trespass support is disabled
Revert to primary support is disabled
Secondary pWWN
Secondary device alias
LUN mapping
IQN
VSAN identifier
"About Load Balancing Using VRRP" section on
Purpose
Enters configuration mode.
Configures an iSLB initiator using the name of the
initiator node and enters iSLB initiator
configuration mode.
Assigns 100 as the weight metric for this iSLB
initiator.
Reverts to the default value (1000).
Cisco MDS 9000 Family NX-OS IP Services Configuration Guide
Configuring iSLB
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