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SG0-001 · Question #278

A two fabric merge has failed, leaving you with segmented fabrics. Investigation of the switch domain IDs shows that there is an ID conflict between two of the switches. What is the corrective action?

The correct answer is D. take one of the switches offline (disabled), change the domain ID, and bring the switch back. When a fabric merge fails due to a domain ID conflict, the corrective action is to isolate one of the conflicting switches, change its domain ID, and then reintroduce it to the fabric.

Storage Management

Question

A two fabric merge has failed, leaving you with segmented fabrics. Investigation of the switch domain IDs shows that there is an ID conflict between two of the switches. What is the corrective action?

Options

  • Ano action is necessary, the ID conflict will be resolved by negotiation
  • Butilize the name server editor to change the domain ID within the fabric
  • Cchange the domain ID on the switch that needs to be changed and allow negotiation to
  • Dtake one of the switches offline (disabled), change the domain ID, and bring the switch back

How the community answered

(28 responses)
  • A
    4% (1)
  • B
    14% (4)
  • C
    4% (1)
  • D
    79% (22)

Why each option

When a fabric merge fails due to a domain ID conflict, the corrective action is to isolate one of the conflicting switches, change its domain ID, and then reintroduce it to the fabric.

Ano action is necessary, the ID conflict will be resolved by negotiation

Domain ID conflicts will prevent fabric merges and require manual intervention, as they are not resolved by negotiation.

Butilize the name server editor to change the domain ID within the fabric

The name server editor is used to view device information, not to change fundamental switch configuration like domain IDs.

Cchange the domain ID on the switch that needs to be changed and allow negotiation to

Changing the domain ID on an active switch without isolation can cause fabric instability or further issues during a merge attempt.

Dtake one of the switches offline (disabled), change the domain ID, and bring the switch backCorrect

Fibre Channel fabrics require each switch to have a unique domain ID. To resolve a conflict, one conflicting switch must be taken offline or isolated, its domain ID changed to a unique value, and then it can be brought back online to merge with the fabric.

Concept tested: Fibre Channel fabric merge and domain ID conflict resolution

Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guides/fabric/nx_os/fabric_config/cfgfabric.html

Topics

#Fibre Channel fabric merge#domain ID conflict#SAN troubleshooting#switch configuration

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