Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 81

Chapter 5 Troubleshooting SAN Switching Issues
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
• Misconfigured fabric timers
Misconfigured port parameters
•
Mismatched zoning
•
Solution
To resolve the VSAN isolation on the TE port:
Use the show interface fc <slot/port> command on the TE port to determine the VSAN number.
•
The isolated VSAN number must match the VSAN number where the host and the storage are
connected to.
In the display output, you see the Trunk vsans (isolated) (Vsan <vsan-id>).
Use the show port internal info interface fc <slot/port> command to determine the root cause of
•
the VSAN isolation.
Possible Cause
Host and storage are not in the same VSAN.
Solution
Use the show vsan membership command to verify that both the host and the storage are in the
•
same VSAN.
If the host and the storage are in different VSANs, in the configuration mode use the commands vsan
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database and vsan <vsan-id> interface fc <slot/port> to move the interface connected to the host
and storage devices into the same VSAN.
Possible Cause
The host and storage are not in the same zone. The zone is not in the active zone set. There is no active
zone set and default zone policy is set to deny.
Solution
Use the command show zone status <vsan-id> to determine if the default zone policy is set to deny.
•
Example:
switch# show zone status
VSAN: 1 default-zone: deny distribute: active only Interop: default
mode: basic merge-control: allow
session: none
The state default zone policy permit means all nodes can see all other nodes. Deny means all nodes
are isolated when not explicitly placed in a zone.
If you are not using zoning, you can change the default zone policy with zone default-zone permit,
but this is not a best practice.
Use the show zone member command for host and storage to verify that they are both in the same
•
zone. If they are not in the same zone, use the zone name <zonename> <vsan-id> command to
create a zone in that VSAN.
Example:
switch(config)# zone name testzone vsan 100
switch(config-zone)# member pwwn 21:00:00:20:37:9e:02:3e
switch(config-zone)# member pwwn 21:00:00:c0:dd:12:04:ce
Use the show zone vsan <vsan-id> command to verify that host and storage are now in the same
zone.
OL-25300-01
Cisco Nexus 5000 Series Troubleshooting Guide
Zoning
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