Compacting The Zone Database For Downgrading; Zone And Zone Set Analysis - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Compacting the Zone Database for Downgrading

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
Exchange Switch Support (ESS) defines a mechanism for two switches to exchange various supported
features (see
Example 24-31 Displays the ESS Information for All Switches in the Specified VSAN
switch# show zone ess vsan 2
ESS info on VSAN 2 :
Example 24-32 Displays the Pending fcalias Information for the VSAN to be Committed
switch# show fcalias pending vsan 2
No pending info found
Compacting the Zone Database for Downgrading
Prior to Cisco SAN-OS Release 3.0(1), only 2000 zones are supported per VSAN. If you add more than
2000 zones to a VSAN, a configuration check is registered to indicate that downgrading to a previous
release could cause you to lose the zones over the limit. To avoid the configuration check, delete the
excess zones and compact the zone database for the VSAN. If there are 2000 zones or fewer after
deleting the excess zones, the compacting process assigns new internal zone IDs and the configuration
can be supported by Cisco SAN-OS Release 2.x or earlier. Perform this procedure for every VSAN on
the switch with more than 2000 zones.
A merge failure occurs when a switch supports more than 2000 zones per VSAN but its neighbor does
Note
not. Also, zone set activation can fail if the switch has more than 2000 zones per VSAN and not all
switches in the fabric support more than 2000 zones per VSAN.
, To delete zones and compact the zone database for a VSAN, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# no zone name ExtraZone vsan 10
Step 3
switch(config)# zone compact vsan 10

Zone and Zone Set Analysis

To better manage the zones and zone sets on your switch, you can display zone and zone set information
using the show zone analysis command (see
Cisco MDS 9000 Family CLI Configuration Guide
24-40
+ member pwwn 21:00:00:20:37:60:43:0c
Example 24-31).
Domain : 210, SWWN : 20:02:00:05:30:00:85:1f, Cap1 : 0xf3, Cap2 : 0x0
Chapter 24
Purpose
Enters configuration mode.
Deletes a zone to reduce the number of zones
to 2000 or fewer.
Compacts the zone database for VSAN 10 to
recover the zone ID released when a zone was
deleted.
Example 24-33 through Example
OL-18084-01, Cisco MDS NX-OS Release 4.x
Configuring and Managing Zones
24-35).