HP0-J67 · Question #99
Refer to the exhibit. You are preparing an installation plan with one of your storage engineers. The customer wants to extend their SAN fabric from four switches to eight switches. What must be…
The correct answer is D. Merging of fabrics could fail if no further configuration or planning is performed. When extending a SAN fabric by adding more switches, a critical consideration is that merging existing fabrics could fail without proper planning and configuration, potentially leading to instability or isolation.
Question
Refer to the exhibit. You are preparing an installation plan with one of your storage engineers. The customer wants to extend their SAN fabric from four switches to eight switches. What must be taken into account when integrating the new solution design?
Exhibits
Options
- AEVA6400 will achieve more host port throughput with higher switch count in the fabric.
- BConnected hosts will fail fabric login.
- CBladeSystem SAN switches cannot be extended with external switches by default.
- DMerging of fabrics could fail if no further configuration or planning is performed.
How the community answered
(50 responses)- A2% (1)
- B10% (5)
- C4% (2)
- D84% (42)
Why each option
When extending a SAN fabric by adding more switches, a critical consideration is that merging existing fabrics could fail without proper planning and configuration, potentially leading to instability or isolation.
An EVA6400's host port throughput is primarily determined by its controllers and backend, not directly by an increased switch count in the fabric, which might even introduce latency if not designed well.
Connected hosts will not automatically fail fabric login merely due to a fabric extension if the merge is successful and zoning is maintained; this is an outcome of a failed merge, not a certainty.
BladeSystem SAN switches are designed to be integrated and extended with external switches in a SAN environment, provided proper configuration and compatibility are ensured.
Merging SAN fabrics requires careful planning to ensure compatibility, address potential domain ID conflicts, and manage zoning and security configurations. Without proper preparation, such as aligning firmware versions and ensuring compatible inter-switch links (ISLs), the fabric merge operation can fail, leading to an unstable or unusable SAN environment.
Concept tested: SAN fabric extension and merging considerations
Source: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/san_config/Cisco_UCS_SAN_Configuration_Guide_for_UCSM/UCSM_SAN_Config_chap_01.html
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