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PowerVault NX Series Network Attached Storage Systems Windows Storage Server 2016 Administrator's Guide

Multipath I/O

Microsoft Multipath I/O (MPIO) is a framework provided by Microsoft which enables storage providers to develop multipath solutions that contain hardware-specific information. These modules are called Device-Specific Modules (DSMs). MPIO is protocol-independent and can be used with Fibre Channel, Internet SCSI (iSCSI), and Serial Attached SCSI (SAS) interfaces in Windows Server OS. MPIO is required to optimize connectivity to storage arrays.

MPIO provides the following features:
  • High application availability through failover clustering
  • High availability for storage arrays
  • SAS disk compatibility
  • Ability to perform MPIO tasks by using Windows PowerShell cmdlets
NOTE: To work with the DSM provided by Microsoft, storage must be SCSI Primary Commands-3 (SPC-3) compliant.

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