Change the Path Policy with vicfg-mpath

You can change the path policy with vicfg-mpath.

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. List all multipathing plugins loaded into the system.

   vicfg-mpath <conn_options> --list-plugins

   At a minimum, this command returns NMP (Native Multipathing Plug-in) and MASK_PATH. If other MPP plug-ins have been loaded, they are listed as well.
2. Set the path policy by using ESXCLI.

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

3. (Optional) If you specified the VMW_PSP_FIXED policy, you must make sure the preferred path is set correctly.
   1. Check which path is the preferred path for a device.

      esxcli <conn_options> storage nmp psp fixed deviceconfig get -d naa.xxxx

   2. 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.