Broadcom-VMware
2V0-621 · Question #74
2V0-621 Question #74: Real Exam Question with Answer & Explanation
The correct answer is B. I/O will rotate on all storage targets that are Active Optimized state only.. When Round Robin PSP is configured on an ALUA-capable storage device, VMware NMP restricts I/O rotation to paths in the Active Optimized state by default.
Section 3 – Configure and Administer vSphere 6.x Storage
Question
Refer to the Exhibit. An administrator is configuring a storage device as shown in the Exhibit. What is the expected effect on the stated device after running the command?
Options
- AI/O will rotate on all storage targets regardless of port group state.
- BI/O will rotate on all storage targets that are Active Optimized state only.
- CI/O will rotate on all storage targets that are Active Unoptimized state only.
- DI/O will rotate on all storage targets that are on Available Nodes only.
Explanation
When Round Robin PSP is configured on an ALUA-capable storage device, VMware NMP restricts I/O rotation to paths in the Active Optimized state by default.
Common mistakes.
- A. Round Robin PSP does not ignore port group or ALUA path states; it respects ALUA designations and will not blindly rotate across all targets regardless of their optimization state.
- C. Active Unoptimized paths route I/O through a non-owning controller at higher latency and are used only as a fallback when no Active Optimized paths remain; Round Robin does not prefer or target them.
- D. Available Nodes is not a recognized VMware ALUA path state; VMware NMP uses the states Active Optimized, Active Unoptimized, Standby, and Unavailable.
Concept tested. Round Robin PSP behavior on ALUA storage arrays
Topics
#Round Robin#ALUA#Active Optimized#path selection policy
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