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Windows Server MPIO and DellEMC PowerPath Coexistence

Overview

DellEMC PowerPath and Microsoft Windows Server MPIO, native Windows Device Specific Module (DSM), can co-exist on the same system for performing migrations between DellEMC Storage Area Network arrays.

How to Check if PowerPath is Attempting to Manage Pure Based LUNs

The following command can be used in PowerPath CLI to see if PowerPath is attempting to manage a Pure based Device.

powermt display dev=all

How to Persistently unmanage Pure Devices from PowerPath Management

This process is not required for Windows native MPIO and PowerPath to coexist, but can be used if needed.

The following command can be used in PowerPath CLI to unmanage Pure devices reported in the process above from PowerPath management. This will prevent the powermt config command from re-adding the device to PowerPath.

powermt unmanage dev=<device>

The following command can be used to verify that the dev has been added to the unmanaged list in PowerPath.

powermt display unmanaged