Multipath I/O Support
Updated: September 29, 2010
Applies To: Microsoft iSCSI Software Target
Microsoft Multipath I/O (MPIO) enables hardware vendors to create interoperable multipathing solutions that increase reliability, interoperability, and high-speed data access. Multipathing is the ability of a system to use more than one read/write path to a storage device, and it is a high-availability solution that provides fault tolerance against a single point of failure in hardware components. Multipathing can also provide load balancing for I/O traffic.
Microsoft iSCSI Software Target 3.3 supports MPIO for block storage on Windows Server 2008 R2 and Windows Storage Server 2008 R2. It also includes a device specific module (DSM), which works with SPC-3 compliant targets.
The following procedure explains how to install MPIO as an additional feature through Server Manager.
To install MPIO
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To open Server Manager, click Start, and then click Server Manager.
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Click Features, and then click Add Features.
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Under Features, select Multipath I/O, and then click Next.
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Click Install.
