If it would be possible to disable the switch, go ahead and change the domain ID as required. If both are set to default = 1, changing the configured domain ID will require to disable the Brocade switch. In the case that port zoning will be in use, remember that the domain ID from the 3rd switch will change.įirst, I would check how the 2x domain IDs are configured. To activate a new zoneSet - containing all zones from both fabrics - will be online. To change the 3rd switches domain id will be disruptive for the nodes attached to the 3rd switch. This will be non-disruptive, the command for setting the switch priority to enforce a switch to become principal is " fabricprincipal -enable -p 0x01". If these default settings are in use, I would increase the fabric priority of the switch currently have running domain id = 1 to ensure, that this switch will become principal while merging the fabrics. This would introduce the risk of switching the running domain IDs from 1 to 2 and from 2 to 1 disruptive. Having default domain ids and switch priorities, there is the possibility - depending on the switch WWNs and how the fabric will be merged - that the fabric principal will change. In this case - while building the fabric - the fabric principal has kept domain id=1 but the subordinate had to switch its running domain id from configured = 1 to running = 2. If the 2x connected switches running domain ids will be 1 and 2, there is still the possibility that both switches will have - by default - a configured domain id of 1. I would use this change to clean up and optimize the fabric and the new zone set, too.įor example, If not already in use, I would consider to introduce Brocade peer zoning. If all switches config files will match, I would create and enable a new zoneSet containing the zones from both active zoneSets and would merge the 3 rd switch into the existing fabric. might be required, too.ĭepending on your supplier, it might be possible that some settings – like In Order Delivery or Routing Policies are different and needs to be corrected as required.
Depending on the attached servers, reconfiguring devices pathes, failover/multipath, security, aso. If a Domain ID needs to be changed this will be disruptive for the attached devices. All other fabric settings must match each other.The switch priorities might be different.If I need to merge two fabrics, I am always using a diff tool like Vim to compare the Brocade config Files:
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