Edit

VOLUME_PHYSICAL_OFFSETS structure (ntddvol.h)

  • Article

The VOLUME_PHYSICAL_OFFSETS structure contains an array of physical offsets and accompanying physical disk numbers and is used with IOCTL_VOLUME_LOGICAL_TO_PHYSICAL to request a series of pairs of physical offsets and disk numbers that correspond to a single logical offset.

Syntax

typedef struct _VOLUME_PHYSICAL_OFFSETS {
  ULONG                  NumberOfPhysicalOffsets;
  VOLUME_PHYSICAL_OFFSET PhysicalOffset[ANYSIZE_ARRAY];
} VOLUME_PHYSICAL_OFFSETS, *PVOLUME_PHYSICAL_OFFSETS;

Members

NumberOfPhysicalOffsets

Contains the number of physical offsets returned by the call to IOCTL_VOLUME_LOGICAL_TO_PHYSICAL.

PhysicalOffset[ANYSIZE_ARRAY]

Contains an array of structures of type VOLUME_PHYSICAL_OFFSET. Each element of the array contains a pair consisting of a physical disk number and an accompanying physical offset <disk number, disk offset>.

Requirements

Requirement Value
Header ntddvol.h (include Ntddvol.h)

See also

IOCTL_VOLUME_LOGICAL_TO_PHYSICAL

IOCTL_VOLUME_PHYSICAL_TO_LOGICAL

VOLUME_PHYSICAL_OFFSET