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30-47
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 30 Configuring and Managing Zones
Compacting the Zone Database for Downgrading
Figure 30-44 Zone Merge Analysis Dialog Box
Step 2 Select the first switch to be analyzed from the Check Switch 1 drop-down list.
Step 3 Select the second switch to be analyzed from the And Switch 2 drop-down list.
Step 4 Enter the VSAN ID where the zone set merge failure occurred in the For Active Zoneset Merge Problems
in VSAN Id field.
Step 5 Click Analyze to analyze the zone merge.
Step 6 Click Clear to clear the analysis data in the Zone Merge Analysis dialog box.
Configuring Zone Merge Control Policies
To configure merge control policies, refer to the Cisco MDS 9000 Family CLI Configuration Guide.
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.
Note A merge failure occurs when a switch supports more than 2000 zones per VSAN but its neighbor does
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 compact the zone database for downgrading, refer to the Cisco MDS 9000 Family CLI Configuration
Guide.
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