DISK_SPACE_INFORMATION structure (fileapi.h)
The DISK_SPACE_INFORMATION structure contains information about the disk space for a particular volume.
Syntax
typedef struct DISK_SPACE_INFORMATION {
ULONGLONG ActualTotalAllocationUnits;
ULONGLONG ActualAvailableAllocationUnits;
ULONGLONG ActualPoolUnavailableAllocationUnits;
ULONGLONG CallerTotalAllocationUnits;
ULONGLONG CallerAvailableAllocationUnits;
ULONGLONG CallerPoolUnavailableAllocationUnits;
ULONGLONG UsedAllocationUnits;
ULONGLONG TotalReservedAllocationUnits;
ULONGLONG VolumeStorageReserveAllocationUnits;
ULONGLONG AvailableCommittedAllocationUnits;
ULONGLONG PoolAvailableAllocationUnits;
DWORD SectorsPerAllocationUnit;
DWORD BytesPerSector;
} DISK_SPACE_INFORMATION;
Members
ActualTotalAllocationUnits
The ActualTotalAllocationUnits is the total volume size without considering Quota setting.
ActualAvailableAllocationUnits
The ActualTotalAllocationUnits is the available space for the volume without considering Quota setting.
ActualPoolUnavailableAllocationUnits
The ActualPoolUnavailableAllocationUnits is the unavailable space for the volume due to insufficient free pool space
CallerTotalAllocationUnits
The CallerTotalAllocationUnits is the total volume size limited by Quota setting.
CallerAvailableAllocationUnits
The CallerAvailableAllocationUnits is the available space for the volume limited by Quota setting.
CallerPoolUnavailableAllocationUnits
The CallerAvailableAllocationUnits is the unavailable space for the volume due to insufficient free pool space.
UsedAllocationUnits
The used space of the volume.
TotalReservedAllocationUnits
Total reserved space.
VolumeStorageReserveAllocationUnits
A special type of reserved space for per-volume storage reserve. This is included in the TotalReservedAllocationUnits.
AvailableCommittedAllocationUnits
The space that has been committed by storage pool but has not been allocated by file system.
PoolAvailableAllocationUnits
Available space in corresponding storage pool. If the volume is not a spaces volume, the PoolAvailableAllocationUnits is set to 0.
SectorsPerAllocationUnit
The number of sectors per allocation unit for the volume.
BytesPerSector
The number of bytes per sector for the volume.
Requirements
| Requirement | Value |
|---|---|
| Header | fileapi.h |