Users Guide

Fabric OS Troubleshooting and Diagnostics Guide 77
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Zone conflicts
9
Correcting a fabric merge problem quickly
1. Determine which switches have the incorrect zoning configuration; then, log in to the switches
as admin.
2. Enter the switchDisable command on all problem switches.
3. Enter the cfgDisable command on each switch.
4. Enter the cfgClear command on each switch.
5. Enter the cfgSave command on each switch to commit the change.
ATTENTION
The cfgClear command clears the zoning database on the switch where the command is run.
6. Enter the switchEnable command on each switch once the zoning configuration has been
cleared.
This forces the zones to merge and populates the switches with the correct zoning database.
The fabrics then merge.
Changing the default zone access
A switch is not allowed to merge with another switch that has an active effective configuration if the
default zone is set to “no access”. Before the switch can join, the default zone setting must be set
to “all access”. When the default zone no access option is enabled and the active configuration is
disabled by using the cfgDisable command, a special hidden configuration with no members is
activated. This configuration does not allow the switch to merge with switches that have an active
effective configuration.
1. Connect to the switch and log in using an account with admin permissions.
2. Display the current setting with the defZone –show command.
3. If your default zone is set to “no access”, use the defZone –allaccess command to change the
default zone.
4. Enter the cfgSave command to save the current configuration.
Editing zone configuration members
1. Log in to one of the switches in a segmented fabric as admin.
2. Enter the cfgShow command and print the output.
3. Start another Telnet session and connect to the next fabric as an admin.
4. Enter the cfgShow command and print the output.
5. Compare the two fabric zone configurations line by line and look for an incompatible
configuration.
6. Connect to one of the fabrics.
7. Run zone configure edit commands to edit the fabric zone configuration for the segmented
switch (refer to Table 14 on page 75 for specific commands).