// ntifs.h

typedef struct _REFS_SMR_VOLUME_INFO_OUTPUT {
  ULONG                    Version;
  ULONG                    Flags;
  LARGE_INTEGER            SizeOfRandomlyWritableTier;
  LARGE_INTEGER            FreeSpaceInRandomlyWritableTier;
  LARGE_INTEGER            SizeofSMRTier;
  LARGE_INTEGER            FreeSpaceInSMRTier;
  LARGE_INTEGER            UsableFreeSpaceInSMRTier;
  REFS_SMR_VOLUME_GC_STATE VolumeGcState;
  NTSTATUS                 VolumeGcLastStatus;
  ULONG                    CurrentGcBandFillPercentage;
  ULONGLONG                Unused[6];
} REFS_SMR_VOLUME_INFO_OUTPUT, *PREFS_SMR_VOLUME_INFO_OUTPUT;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-ntifs-_refs_smr_volume_info_output)

REFS_SMR_VOLUME_INFO_OUTPUT structure

Description

The REFS_SMR_VOLUME_INFO_OUTPUT structure describes a Shingled Magnetic Recording (SMR) volume's current state on space and garbage collection activities.

Members

`Version`

Currently ignored. Will be set to zero for now.

`Flags`

Currently ignored. Will be set to zero for now.

`SizeOfRandomlyWritableTier`

Specifies the total size of the randomly writable tier.

`FreeSpaceInRandomlyWritableTier`

Specifies the free space within the randomly writable tier.

`SizeofSMRTier`

Specifies the total size of the Shingled Magnetic Recording (SMR) tier.

`FreeSpaceInSMRTier`

Specifies the free space the Shingled Magnetic Recording (SMR) tier.

`UsableFreeSpaceInSMRTier`

Specifies the usable space the Shingled Magnetic Recording (SMR) tier.

`VolumeGcState`

Specifies the current state of the garbage collector.

`VolumeGcLastStatus`

Specifies the status of the last garbage collection using the specified method in REFS_SMR_VOLUME_GC_METHOD.

`CurrentGcBandFillPercentage`

Specifies the current band fill percentage of the garbage collector.

`Unused`

Reserved for future use.

View the official Windows Driver Kit DDI reference

Edit description on GitHub