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14-1
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
14
Troubleshooting Zones and Zone Sets
This chapter describes how to identify and resolve problems that might occur while implementing zones
and zone sets on switches in the Cisco MDS 9000 Family. It includes the following sections:
• Overview, page 14-1
• Troubleshooting Checklist, page 14-1
• Zone and Zone Set Issues, page 14-4
• Zone Merge Failure, page 14-13
• Enhanced Zoning Issues, page 14-21
Overview
Zoning enables access control between storage devices and user groups. Creating zones increases
network security and prevents data loss or corruption.
Zone sets consist of one or more zones in a VSAN. A zone set can be activated or deactivated as a single
entity across all switches in the fabric, but only one zone set can be activated at any time in a VSAN.
Zones can be members of more than one zone set. A zone consists of multiple zone members. Members
in a zone can access each other; members in different zones cannot access each other.
Troubleshooting Checklist
The following criteria must be met for zoning to function properly:
Checklist Check off
Verify that you have an active zone set.
Verify that you have the correct hosts and storage devices in the same zone.
Verify that the zone is part of the active zone set.
Verify that the default zone policy is permit if you are not using zoning.
Verify that you have only pWWN-based zoning if you have a Cisco MDS 9020 fabric
switch in your fabric.
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