You can change the path policy with ESXCLI.

Specify one of the options listed in Connection Options for vCLI Host Management Commands in place of <conn_options>.

Prerequisites

Verify that you are familiar with the supported path policies. See Managing Path Policies.

Procedure
1

Ensure your device is claimed by the NMP plug-in.

Only NMP devices allow you to change the path policy. 

esxcli <conn_options> storage nmp device list
2

Retrieve the list of path selection policies on the system to see which values are valid for the --psp option when you set the path policy. 

esxcli storage core plugin registration list --plugin-class="PSP"
3

Set the path policy by using ESXCLI. 

esxcli <conn_options> storage nmp device set --device naa.xxx --psp VMW_PSP_RR
4

(Optional) If you specified the VMW_PSP_FIXED policy, you must make sure the preferred path is set correctly.

a

Check which path is the preferred path for a device. 

esxcli <conn_options> storage nmp psp fixed deviceconfig get --device naa.xxx
b

If necessary, change the preferred path. 

esxcli <conn_options> storage nmp psp fixed deviceconfig set --device naa.xxx --path vmhba3:C0:T5:L3

The command sets the preferred path to vmhba3:C0:T5:L3. Run the command with --default to clear the preferred path selection.