Which statement is true for the Path Selection Plug-In VMW_PSP_MRU?
A.
VMW_PSP_MRU is default for a majority of active-active and active-passive arrays.
B.
VMW_PSP_MRU will remain on the selected path even if the state were to change.
C.
VMW_PSP_MRU is recommended for Virtual SAN.
D.
VMW_PSP_MRU will have no preferred path setting for the Plug-In.
Explanation:
Explanation/Reference:
D is correct.
URL: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vcli.examples.doc%2Fcli_manage_storage.6.7.html
agreed. Per the above article – The host selects the path that it used most recently. When the path becomes unavailable, the host selects an alternative path. The host does not revert back to the original path when that path becomes available again. THERE IS NO PREFERRED PATH SETTING with the MRU policy. MRU is the default policy for active-passive storage devices
PSP: Path selection protocol
MRU: Most recently used
VMW_PSP_MRU will choose the most recently used path.
The problem is initially all paths are set with rank zero