CREATE_USN_JOURNAL_DATA structure (ntifs.h)
The CREATE_USN_JOURNAL_DATA structure contains information for the creation of an update sequence number (USN) change journal.
Syntax
typedef struct {
ULONGLONG MaximumSize;
ULONGLONG AllocationDelta;
} CREATE_USN_JOURNAL_DATA, *PCREATE_USN_JOURNAL_DATA;
Members
MaximumSize
The target maximum size that the NTFS file system allocates for the change journal, in bytes.
AllocationDelta
The size of memory allocation that is added to the end and removed from the beginning of the change journal, in bytes.
The change journal can grow to more than the sum of the values of MaximumSize and AllocationDelta before being trimmed.
Remarks
For more information, see Creating, Modifying, and Deleting a Change Journal.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP |
| Header | ntifs.h |