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
42-30
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 42 Configuring iSCSI
Configuring iSCSI
Caution
Changing the forwarding mode of an iSCSI interface that is part of an iSLB VRRP group impacts load
balancing on the interface. See the
“Changing iSCSI Interface Parameters and the Impact on Load
Balancing” section on page 42-51
.
To set the iSCSI routing mode, follow this step:
Displaying iSCSI Information
Use the
show iscsi
command to obtain detailed information about iSCSI configurations.
This section includes the following topics:
•
Displaying iSCSI Statistics, page 42-31
•
Displaying Proxy Initiator Information, page 42-33
•
Displaying Global iSCSI Information, page 42-34
•
Displaying iSCSI Sessions, page 42-34
•
Displaying iSCSI Initiators, page 42-36
•
Displaying iSCSI Virtual Targets, page 42-39
•
Displaying iSCSI User Information, page 42-39
Displaying iSCSI Interfaces
Use the
show iscsi interface
command to view the summary, counter, description, and status of the
iSCSI interface. Use the output to verify the administrative mode, the interface status, TCP parameters
currently used, and brief statistics.
Example 42-1 Displays the iSCSI Interface Information
switch#
show interface iscsi 4/1
iscsi4/1 is up
Hardware is GigabitEthernet
Port WWN is 20:cf:00:0c:85:90:3e:80
Admin port mode is ISCSI
Port mode is ISCSI
Speed is 1 Gbps
iSCSI initiator is identified by name
Number of iSCSI session: 0 (discovery session: 0)
Number of TCP connection: 0
Configured TCP parameters
Local Port is 3260
PMTU discover is enabled, reset timeout is 3600 sec
Keepalive-timeout is 60 sec
Command
Purpose
Step 1
switch(config-if)#
mode cut-thru
Configures cut-thru mode on the iSCSI interface.
Caution
Changing the iSCSI routing mode disrupts the
iSCSI sessions on the interface.
switch(config-if)#
no mode cut-thru
Reverts store-and-forward mode (default).