Setting Path Policy on Only Single Datastore

Hello,

I want to change Path Policy on ONLY ONE Datastore to Round Robin. This is currently set to Most Recently Used.

I found one vmware KB article 2000552 explaining to change this. But still not clear;

This 1 Datastore is connected to 5 hosts.

1) Do I need to login into each host (putty) and apply the command?

2) How to know which policy needs to be set to RR, as after loging into one host and executing below command, lists storage array type as attached in "Path Policy 2".

     # esxcli storage nmp satp list

3) Please let me know step by step commands.

4) Is Host reboot or any other such restart is required that may impact production hours?

5) Can this be simply done through vSphere Client?;

     Select RUNTIME NAME ==> drop down path selection, select RR ==> click CHANGE

Appreciate your help in advance.

Thanks,

Mihir