2V0-622 · Question #73
Refer to the Exhibit. An administrator wishes to provide Load Balanced I/O for the device shown in the Exhibit. To meet this requirement, which setting should be changed?
The correct answer is B. Path Selection Policy = Round Robin (VMware). In VMware vSphere, the Path Selection Policy (PSP) controls how I/O is distributed across available storage paths. Round Robin is the PSP that enables load balanced I/O across multiple paths.
Question
Refer to the Exhibit. An administrator wishes to provide Load Balanced I/O for the device shown in the Exhibit. To meet this requirement, which setting should be changed?
Exhibit
Options
- AStorage Array Type Policy = VMW_NMP_RR
- BPath Selection Policy = Round Robin (VMware)
- CStorage Array Type Policy = VMW_SATP_RR
- DPath Selection Policy = MRU (VMware)
How the community answered
(21 responses)- A5% (1)
- B76% (16)
- C14% (3)
- D5% (1)
Why each option
In VMware vSphere, the Path Selection Policy (PSP) controls how I/O is distributed across available storage paths. Round Robin is the PSP that enables load balanced I/O across multiple paths.
VMW_NMP_RR is not a valid Storage Array Type Policy value; the SATP layer handles array type detection and does not control load balancing behavior.
The Path Selection Policy governs how a host chooses a path for each I/O operation. Setting it to Round Robin (VMW_PSP_RR) distributes I/O requests across all active paths in rotation, directly achieving load balanced I/O. The Storage Array Type Policy (SATP) is a separate construct responsible for array discovery and path health monitoring, not I/O distribution.
VMW_SATP_RR is not a valid SATP identifier, and even if it were, the SATP layer handles array classification rather than distributing I/O across paths.
MRU (Most Recently Used) routes all I/O through a single most-recently-used path rather than distributing load across multiple paths, which is the opposite of load balancing.
Concept tested: VMware PSP Round Robin load balancing configuration
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-DB5BC795-E4D9-4350-9C5D-12BB3C0BB6D4.html
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