Cisco MDS 9000 Series Configuration Manual page 197
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Also See for MDS 9000 Series:
- Command reference manual (1464 pages) ,
- Configuration manual (308 pages) ,
- Troubleshooting manual (161 pages)
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Distributing Device Alias Services
A properly merged device-alias application should only show a single merge master. If there is more than one
Note
merge master, as shown in the above example, it indicates that the device-alias databases are not merged.
Step 2
Review the CFS or the device-alias merge failure syslog to confirm that the merge failed. Alternatively, run the show
cfs merge status name device-alias command to view the status of the merge:
switch# show cfs merge status name device-alias
Physical-fc
Merge Status: Failed [ Mon Apr
Local Fabric
-------------------------------------------------------------------------
Switch WWN
-------------------------------------------------------------------------
20:00:00:0d:ec:2f:c1:40
Total number of switches = 1
Remote Fabric
-------------------------------------------------------------------------
Switch WWN
-------------------------------------------------------------------------
20:00:00:0d:ec:04:99:40
Total number of switches = 1
Step 3
Depending on the Cisco MDS NX-OS release your switch is using, run one of the following commands:
• Cisco MDS NX-OS Release 8.1(1) and later releases
Run the show device-alias merge conflicts command to display the device alias and pWWNs that are causing the
merge failure.
Run the show device-alias merge conflicts command from a switch listed as a merge master.
Note
In the following example, the same device-alias name, A1, is assigned to two different pWWNs—a pWWN on a
local switch and a pWWN on a peer switch:
switch-1# show device-alias merge conflicts
Merge Status : Failure
Peer Switch SWWN : 20:00:00:0d:ec:24:f5:00
Conflicts :
1. Conflicting Pwwns : 1
-------------------------------------------------------------------------
Local PWWN
-------------------------------------------------------------------------
pwwn 0:01:01:01:01:01:01:02
• Cisco MDS NX-OS Release 7.3 and earlier releases
Compare the device-alias databases manually to identify the duplicate device-alias names.
In the following example, the same device-alias name, A1, is assigned to two different pWWNs—a pWWN on a
local switch and a pWWN on a peer switch.
From merge master#1:
switch-1# show device-alias database
...output trimmed to show only mismatched device-alias
device-alias name A1 pwwn 21:01:01:01:01:01:01:02
Resolving Duplicate Device Alias Names (Same Device Alias Name, Different pWWNs)
IP Address
172.20.150.38
switch-1
IP Address
172.20.150.30
switch-2
Peer PWWN
Device-alias
pwwn :01:01:01:01:01:01:03
9 15:57:58 2007 ] <===Merge status
[Merge Master] <<< Merge Master#1
[Merge Master] <<< Merge Master#2
A1
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
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