SG0-001 · Question #592
Which of the following is the MOST important item a storage administrator should check FIRST for a successful fabric merge?
The correct answer is C. Domain IDs. Before attempting a Fibre Channel fabric merge, a storage administrator should first verify that all switches involved have unique Domain IDs to prevent conflicts and ensure a successful integration.
Question
Which of the following is the MOST important item a storage administrator should check FIRST for a successful fabric merge?
Options
- AFaulty SFPs in the switch
- BNumber of aliases in the zoning database
- CDomain IDs
- DTotal number of ports in the combined fabric
How the community answered
(22 responses)- A5% (1)
- B5% (1)
- C77% (17)
- D14% (3)
Why each option
Before attempting a Fibre Channel fabric merge, a storage administrator should first verify that all switches involved have unique Domain IDs to prevent conflicts and ensure a successful integration.
Checking for faulty SFPs is a troubleshooting step for individual link issues, not the primary and most important prerequisite for initiating a successful fabric merge.
The number of aliases in the zoning database relates to managing access within the fabric, not a fundamental prerequisite for the initial successful merging of two separate fabrics.
When merging Fibre Channel fabrics, ensuring unique Domain IDs for each switch in the combined fabric is absolutely critical. If switches have duplicate Domain IDs, the merge will fail, or worse, cause fabric instability and data path issues that disrupt storage access.
The total number of ports in the combined fabric is a capacity calculation and a result of a successful merge, not a prerequisite check for the merge operation itself.
Concept tested: Fibre Channel fabric merge prerequisites
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guide/fm_6_2_cg/fabrics.html
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