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Adding a Hardware ID for Use with MPIO and Viewing Hidden Devices

Updated: September 30, 2009

Applies To: Windows Server 2008 R2

  1. Open the MPIO control panel.

  2. On the MPIO Devices tab, click Add.

  3. In the Add MPIO Support dialog box, type the hardware ID for the device that you want to be managed by MPIO, and then click OK.

    noteNote
    For a list of all hardware IDs for all currently attached devices, open a command prompt, and then type mpclaim –E. You can copy and paste the ID that you want to be used with MPIO in Step 3 of this procedure, but do not include the beginning or ending quotes around the hardware ID.

After the device is claimed by MPIO, it is hidden in Device Manager and a pseudo-LUN device is shown in Device Manager.

For example, the single path disk device listed in Device Manager that is named “emBoot sanFly SCSI Disk device” becomes a hidden device, and is replaced with a new device named “emBoot sanFly Multi-Path Disk Device.” The exact name depends on several factors, including the type of device and the DSM being used.

  • To view the original disk device, in Device Manager, on the Action menu, click Show Hidden Devices.

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