The Offset argument defines the starting point of the
search, while the Length argument specifies the length of the search. You can use this command
to locate sparse regions within files. See the ???Understanding Sparse Files??? sidebar for additional
information.
setshortname Filename ShortFilename Sets the short (DOS) filename for a file. The short
filename must fall within the 8-character filename and 3-character extension limitations. The
Dir command won??™t normally display the results of this command. However, using the /X command
line switch with the Dir command displays both the long and the short filename.
setvaliddata Filename DataLength Sets the valid data length for a file. The Valid Data
Length (VDL) is the length of the valid data within a file, rather than the actual file length as
indicated by an End Of File (EOF) marker. The data between the VDL and the EOF may contain
MONITORING THE FILE SYSTEM WITH THE FSUTIL COMMAND 241
data, as in a download cache, but any query to that data returns a 0 since the data isn??™t valid.
Because of the low-level nature of this particular argument, only administrators with the
SetManageVolumePrivilege can execute it.
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