#ifndef _NTIOAPI_H

/**
 * The FILE_SFIO_VOLUME_INFORMATION structure contains scheduled-file-I/O (SFIO) reservation information for a volume.
 */
typedef struct _FILE_SFIO_VOLUME_INFORMATION
{
    ULONG MaximumRequestsPerPeriod;
    ULONG MinimumPeriod;
    ULONG MinimumTransferSize;
} FILE_SFIO_VOLUME_INFORMATION, *PFILE_SFIO_VOLUME_INFORMATION;

#endif
View code on GitHub