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Installing the Data ONTAP DSM for Windows MPIO

The Data ONTAP DSM for Windows MPIO manages multiple paths between the Windows host and the storage cluster. Multiple paths are required to ensure that your host can access its LUN if a path or component fails. The Data ONTAP DSM sets the required timeout values and storage parameters on the host.

Before you begin

You must have completed the following tasks:

About this task

This task requires rebooting the Windows host.

Detailed installation information is available in the Data ONTAP DSM for Windows MPIO Installation and Administration Guide, available with the software download.


  1. Download the appropriate version of the Data ONTAP DSM from the NetApp Support Site.
  2. Install any required Windows hotfixes.
    The Data ONTAP DSM installer will not proceed until the required hotfixes have been installed.
  3. For Windows Server 2003 and 2008, install Windows PowerShell 2.0 or later.
    Installing PowerShell is not required for Windows Server 2008 R2 or later.
  4. Run the Data ONTAP DSM installation program and follow the prompts.
  5. Reboot the Windows host when prompted.