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Number   :  194
Date     :  2001-06-14
Author   :  Kan Yabumoto
Subject  :  Re: directory date preservation
Size(KB) :  1



Joseph:

For those who don't know what it is, let me explain the background.

Under DOS and Win9x/ME, a well behaving program such as XXCOPY
(which uses only the standard file I/O API to access the disk
rather than using direct-disk I/O, bypassing the file system)
cannot modify the timestamp of a directory.

However, under WinNT/2000, there is a way to change the directory
timestamp using official file I/O API.

Due to the roots of XXCOPY, it had not adjusted the directory time
stamps even with the /CLONE procedure.

That has changed since v.2.55.6 (released to a very limited
number of users) in March 2001. For practical purposes, this
current series of beta test versions (v.2.56.x) is the first time
you see this feature enabled.

Please do not get confused. This feature is not dependent upon
the type of the partition (i.e, the distinction between FAT vs
NTFS). Rather, it is under what OS, XXCOPY is launched. So,
if you have a dual-boot (Win9x and NT/200) system, you can always
boot into the NT/2000 OS, and create or clone the directory,
and switch back to Win9x if you really need to keep the directory
time of a FAT partition in sync with the source. In the case of
NTFS, it is always possible (using the newest version of XXCOPY)
that the directory timestamp will be set the same as the source.

Kan Yabumoto

=================================================================

At 2001-06-13 22:54, Joseph Maddison wrote:
>Hi, just a few comments...
>
>With what version did directory date preservation make it in? I wasn't
>seeing it in 2.44.3.
>
>On a 1.2MHz Athlon, I'm seeing an increase of about 5 MB/min by using /q3,
>so there's
>something to be said for it.
>
>Why does a move operation (/rcy) always end in status 100, no files to copy?
>
>thanks,
>
>Joseph Maddison
>Minneapolis, MN
>
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/



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