VMware Certified Professional - Data Center Virtualization (VCP-DCV) Practice Exam

Which statement is true for the Path Selection Plug-In VMW_PSP_MRU?

1. VMW_PSP_MRU is default for a majority of active-active and active-passive arrays.

2. VMW_PSP_MRU will remain on the selected path even if the state were to change.

3. VMW_PSP_MRU is recommended for Virtual SAN.

4. VMW_PSP_MRU will have no preferred path setting for the Plug-In.

The correct answer is: VMW_PSP_MRU will have no preferred path setting for the Plug-In.

The statement that VMW_PSP_MRU will have no preferred path setting for the Plug-In is accurate because VMW_PSP_MRU, which stands for Most Recently Used Path Selection Policy, is designed to utilize the path that was most recently active for I/O operations. This means that it does not designate a specific preferred path; instead, it operates based on the last path used, automatically switching paths as needed based on I/O activity and availability. In contrast to other path selection methods, which might maintain a preferred path or allow predetermined configurations, VMW_PSP_MRU focuses purely on the most recent activity, adapting to changes in the infrastructure dynamically. This behavior promotes efficient use of available paths without locking in one as preferred, which could lead to underutilization of resources. The other options do not accurately reflect the characteristics of VMW_PSP_MRU. For instance, while it might be commonly used in various configurations, it is not typically the default for all active configurations, nor would it keep using a path if its state changes. Additionally, it is not recommended for Virtual SAN, which often employs different strategies for path management.