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FILE_DESIRED_STORAGE_CLASS_INFORMATION structure (ntifs.h)

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Contains the information for the desired storage class attribute. The class information is set by calling NtSetInformationFile

Syntax

typedef struct _FILE_DESIRED_STORAGE_CLASS_INFORMATION {
  FILE_STORAGE_TIER_CLASS Class;
  ULONG                   Flags;
} FILE_DESIRED_STORAGE_CLASS_INFORMATION, *PFILE_DESIRED_STORAGE_CLASS_INFORMATION;

Members

Class

A FILE_STORAGE_TIER_CLASS-value that the storage class. This is the tier type for the file/directory.

Flags

Flags for the class type. Here are the possible values:

  • QUERY_STORAGE_CLASSES_FLAGS_MEASURE_WRITE
  • QUERY_STORAGE_CLASSES_FLAGS_MEASURE_READ

Requirements

Requirement Value
Minimum supported client Windows 10, version 1709
Header ntifs.h