VMware vSphere SDKs and Tools 8.0

8.0 7.0 6.7 6.5

Managing Path Selection Policy Plug-Ins with esxcli storage nmp psp

You can use
esxcli storage nmp psp
 to manage VMware path selection policy plug-ins included with the VMware NMP and to manage third-party PSPs.
When used with third-party PSPs, the syntax depends on the third-party PSP implementation.

Retrieving PSP Information

The
esxcli storage nmp psp generic deviceconfig get
 and
esxcli storage nmp psp generic pathconfig get
 commands retrieve PSP configuration parameters. The type of PSP determines which command to use.
  • Use
    nmp psp generic deviceconfig get
     for PSPs that are set to
    VMW_PSP_RR
    ,
    VMW_PSP_FIXED
     or
    VMW_PSP_MRU
    .
  • Use
    nmp psp generic pathconfig get
     for PSPs that are set to
    VMW_PSP_FIXED
     or
    VMW_PSP_MRU
    . No path configuration information is available for
    VMW_PSP_RR.
To retrieve PSP configuration parameters, use the appropriate command for the PSP.
  • Device configuration information. 
    esxcli <conn_options> storage nmp psp generic deviceconfig get --device=<device>
esxcli <conn_options> storage nmp psp fixed deviceconfig get --device=<device>
esxcli <conn_options> storage nmp psp roundrobin deviceconfig get --device=<device>
  • Path configuration information. 
    esxcli <conn_options> storage nmp psp generic pathconfig get --path=<path>
  • Retrieve the PSP configuration for the specified path. 
    esxcli <conn_options> nmp psp pathconfig generic get --path vmhba4:C1:T2:L23
The
esxcli storage nmp psp list
 command shows the list of PSPs on the system and a brief description of each plug-in.

Setting Configuration Parameters for Third-Party Extensions

The
esxcli storage nmp psp generic deviceconfig set
 and
esxcli storage nmp psp generic pathconfig set
 commands support future third-party PSA expansion. The
setconfig
 command sets PSP configuration parameters for those third-party extensions.
The precise results of these commands depend on the third-party extension. See the extension documentation for information.
Use
esxcli storage nmp roundrobin setconfig
 for other path policy configuration. See Customizing Round Robin Setup.
You can run
esxcli storage nmp psp generic deviceconfig set --device=<device>
 to specify PSP information for a device, and
esxcli storage nmp psp generic pathconfig set --path=<path>
 to specify PSP information for a path. For each command, use
--config
 to set the specified configuration string.
Options
Description
--config <config_string>
-c <config_string>
Configuration string to set for the device or path specified by
--device
 or
--path
. See Managing Path Policies.
--device <device>
-d <device>
Device for which you want to customize the path policy.
--path <path>
-p <path>
Path for which you want to customize the path policy.

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