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Forum Discussion
Folder Timestamps
I am wanting to backup some files from my Duo to my RN104. There is a problem that for some folders the date/timestamp is changing to the time of the copy. My approach was to firstly pull fil...
When you say the timestamp is changed, do you mean the date modified or the date created? If it's the date modified, then the expected behavior (same as Windows does it) is that the timestamp will be updated if you put anything new in it (included "old" files copied anew).
Thanks very much for responding.
The default datestamp shown in windows explorer is date last modified. I have been looking around at tools which could allow me to systematically change the last modified date to the created date and it is both the created and last modified dates which are being changed.
I agree that if a new file is placed in a folder, the folder modified date will change, but that isn't what I think I am doing, all that is supposed to be happening is that a copy of what exists on one NAS is being replicated to another.
There is also the one file which has been changed as being modified with the current date, though having looked at some of the other files they have all being changed to a current created date, but retain the correct historic last modified and last accessed date.
I have previously done backups Duo > Duo and the backup has been a perfect replica of the original without any change to the timestamps. In fact I just checked an earlier backup of the date amended file on my second Duo and that matches with the source.
I remain confused and a bit concerned, after all a backup is supposed to be a copy, not a copy with a few amendments :smileyindifferent:
Edit:Just to be clear, the destination NAS, the RN104, has just been factory reset so there was no existing data
937carrera wrote:Thanks very much for responding.
I agree that if a new file is placed in a folder, the folder modified date will change, but that isn't what I think I am doing, all that is supposed to be happening is that a copy of what exists on one NAS is being replicated to another.
You are puuting a new (to the backup NAS) file in the folder via a backup operation. Try dragging a folder over in Windows. You'll get the same result. If you have folders that contain no new/updated files, then those will not have the timestamp updated.
The only way around it that I know of is to use robocopy from Windows and set the appropriate option. To change them after the fact, maybe Folder Time Update will fill your need. It changes the folder access timestamp to that of the newest file inside. The same author has Bulk File Changer, which can copy one date to another, but I think it only works on files, not folders.
As for the one file with the new date, that's probably the one the backup failed on (check the backup log) and the one that's one byte too short. So it is correctly identifying itself as "new" (different from the source). As to why it did that, the log may give you more information.
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