Multipathing I/O on Windows Server 2008

How to install and configure Multipathing I/O on a computer running Windows Server 2008

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To install Multipath I/O

  1. Open Server Manager.To open Server Manager, click Start, point to Administrative Tools, and then click Server Manager.
  2. In the Features area, click Add Features.
  3. On the Select Features page of the Add Features Wizard, select Multipath I/O, and then click Next.
  4. On the Confirm Installation Selections page, click Install.
  5. When installation has completed, click Close.

To install Multipath I/O on a computer by using the Server Manager command line, complete the following steps.

To install Multipath I/O by using a command line

  1. Open a Command Prompt window with elevated privileges.Right-click the Command Prompt object on the Start menu, and then click Run as administrator.
  2. Type the following, and press ENTER. ServerManagerCmd.exe -install Multipath-IO
  3. When installation has completed, you can verify that Multipath I/O has installed by entering the following command and reviewing the query results in the command window. Multipath I/O should show in the list of installed packages. ServerManagerCmd.exe -query

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Removing Multipath I/O

To remove Multipath I/O, complete the following steps.

To remove Multipath I/O

  1. Open Server Manager.To open Server Manager, click Start, point to Administrative Tools, and then click Server Manager.
  2. In the Features area, click Remove Features.
  3. On the Select Features page of the Add Features Wizard, select Multipath I/O, and then click Next.
  4. On the Confirm Installation Selections page, click Install.
  5. When installation has completed, click Close.

To remove Multipath I/O by using the Server Manager command line, complete the following steps.

To remove Multipath I/O by using a command line

  1. Open a Command Prompt window with elevated privileges.Right-click the Command Prompt object on the Start menu, and then click Run as administrator.
  2. Type the following, and press ENTER. ServerManagerCmd.exe -remove Multipath-IO
  3. When removal has completed, you can verify that Multipath I/O was removed by entering the following command and reviewing the query results in the command window. Multipath I/O should not be in the list of installed packages. ServerManagerCmd.exe -query
To claim an iSCSI-attached device for use with MPIO

Open the MPIO control panel, and then click the Discover Multi-Paths tab.
  1. Select the Add support for iSCSI devices check box, and then click Add. When prompted to restart the computer, click Yes.
  2. When the computer restarts, the MPIO Devices tab lists the additional hardware ID “MSFT2005iSCSIBusType_0x9.” When this hardware ID is listed, all iSCSI bus attached devices will be claimed by the Microsoft DSM.
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