FILE_FS_SIZE_INFORMATION - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTIOAPI_H

typedef struct _FILE_FS_SIZE_INFORMATION
{
    LARGE_INTEGER TotalAllocationUnits;
    LARGE_INTEGER AvailableAllocationUnits;
    ULONG SectorsPerAllocationUnit;
    ULONG BytesPerSector;
} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;

#endif

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This structure is documented in Windows Driver Kit.

Structure provides detailed information about volume physical size. Is returned in call to NtQueryVolumeInformationFile with FileFsSizeInformation information class.

TotalAllocationUnits

AvailableAllocationUnits

SectorsPerAllocationUnit

BytesPerSector

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See also

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