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11-80
Cisco MDS 9000 Family Command Reference
OL-8413-07, Cisco MDS SAN-OS Release 3.x
Chapter 11 I Commands
iscsi duplicate-wwn-check
iscsi duplicate-wwn-check
To check the current running configuration for conflicts between iSCSI initiators’ static WWN
allocation and what the system thinks is available in its WWN pool, use the iscsi duplicate-wwn-check
command in configuration mode.
iscsi duplicate-wwn-check
Syntax Description This command has no arguments or keywords.
Defaults None.
Command Modes Configuration mode.
Command History
Usage Guidelines Prior to Cisco MDS SAN-OS Release 2.1(2), WWNs assigned to static iSCSI initiators by the system
can be inadvertently returned to the system when an upgrade fails or the system software is manually
downgraded (that is, when you manually boot up an older Cisco MDS SAN-OS release without using
the install all command). In these instances, the system can later assign those WWNs to other iSCSI
initiators (dynamic or static) and cause conflicts.
As of Cisco MDS SAN-OS Release 2.1(2), you can use the iscsi duplicate-wwn-check command to
check for and remove any configured WWNs that belong to the system.
Note This command is not supported on the Cisco MDS 9124 switch, the Cisco Fabric Switch for HP c-Class
BladeSystem, and the Cisco Fabric Switch for IBM BladeCenter.
Examples The following example shows how to check the current running configuration for conflicts between
iSCSI initiators’ static WWN allocation and what the system thinks is available in its WWN pool.
switch# config terminal
Enter configuration command, one per line. End with CNTL/Z.
switch(config)# iscsi duplicate-wwn-check
List of Potential WWN Conflicts:
-------------------------------
Node : iqn.test-local-nwnn:1-local-pwwn:1
nWWN : 22:03:00:0d:ec:02:cb:02
pWWN : 22:04:00:0d:ec:02:cb:02
Release Modification
2.1(2) This command was introduced.
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