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
11-19
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 11 Troubleshooting VSANs, Domains, and FSPF
Domain Issues
Assigning a New Domain ID Using Fabric Manager
All devices attached to the switch in the VSAN get a new FC ID when a new domain ID is assigned.
Some hosts or storage devices may not function as expected if the FC ID of the host or storage device
changes.
To verify FC domain ID overlap and reassign a new domain ID using Fabric Manager, follow these steps:
Step 1
Choose
Switches > Interfaces > FC Physical
and check the FailureCause column for an isolation or
domain overlap status.
Step 2
Choose
Fabric
xx
> VSAN
xx
> Domain Manager
to view which domains are currently in the VSAN.
Step 3
Repeat
Step 2
on the other switch to determine which domain IDs overlap.
Step 4
Select the
Configuration
tab and set
Config Domain and Config Type to change the domain ID for one
of the overlapping domain IDs.
•
The static option tells the switch to request that particular domain ID. If it does not get that particular
address, it will isolate itself from the fabric.
•
The preferred option has the switch request a specified domain ID. If that ID is unavailable, it will
accept another ID.
Step 5
Set the Restart drop-down menu to
disruptive
and click
Apply Changes
to restart the Domain Manager.
Note
While the static option can be applied to runtime after a disruptive or nondisruptive restart, the
preferred option is applied to runtime only after a disruptive restart.
Assigning a New Domain ID Using the CLI
All devices attached to the switch in the VSAN get a new FC ID when a new domain ID is assigned.
Some hosts or storage devices may not function as expected if the FC ID of the host or storage device
changes.
To verify FC domain ID overlap and reassign a new domain ID using the CLI, follow these steps:
Step 1
Issue the
show interface
command. The following example output shows the isolation error message.
switch#
show interface fc2/14
fc2/14 is down
(Isolation due to domain overlap)
Hardware is Fibre Channel, WWN is 20:4e:00:05:30:00:63:9e
vsan is 2
Beacon is turned off
192 frames input, 3986 bytes, 0 discards
0 runts, 0 jabber, 0 too long, 0 too short
0 input errors, 0 CRC, 3 invalid transmission words
0 address id, 0 delimiter
0 EOF abort, 0 fragmented, 0 unknown class
231 frames output, 3709 bytes, 16777216 discards
Received 28 OLS, 19 LRR, 16 NOS, 48 loop inits
Transmitted 62 OLS, 22 LRR, 25 NOS, 30 loop inits
