MPIO_DISK_INFO - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// mpiowmi.h

typedef struct _MPIO_DISK_INFO {
  ULONG           NumberDrives;
  MPIO_DRIVE_INFO DriveInfo[1];
} MPIO_DISK_INFO, *PMPIO_DISK_INFO;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-mpiowmi-_mpio_disk_info)

_MPIO_DISK_INFO structure

Description

The MPIO_DISK_INFO structure allows applications to query the system for the top level view of its disk topology. The request must be directed to the MPIO control object by using its WMI instance name.

Members

NumberDrives

An unsigned 32-bitfield that represents the number of multi-path disks in the system.

DriveInfo

An array that returns the information representing each multi-path LUN (pseudo-LUN) in the system. The number of elements in the array is given by NumberDrives and each element represents an instance of an MPIO_DRIVE_INFO structure.

View the official Windows Driver Kit DDI reference

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