Path: utzoo!attcan!utgpu!watmath!iuvax!mailrus!wasatch!cs.utah.edu!zeleznik
From: zeleznik%cs.utah.edu@wasatch.utah.edu (Mike Zeleznik)
Newsgroups: comp.sys.apollo
Subject: WBAK/OmniBack mod/create times
Keywords: backup archive wbak rbak omniback
Message-ID: <3188@wasatch.utah.edu>
Date: 23 Aug 89 20:25:40 GMT
Organization: University of Utah CS Dept
Lines: 21

Is there a good reason why wbak uses the mod time of a file instead of its
create time for incrementals?  

The problem is if you "cp -p" in from another machine, or tar stuff in, the
mod times will stay as the original (which is usually what one wants, along
with keeping the modes).  But now, in general, these "new" files won't get
backed up til the next full save (unless the mod times happened to be
in the right window).  I don't think this would happen with ctime.

This seems kind of a big hole for people who move things around.

I understand OmniBack uses mod times also (correct me if I am wrong).

Is there a reason for not using ctime?  Thanks.

Mike

  Michael Zeleznik              Computer Science Dept.
                                University of Utah
  zeleznik@cs.utah.edu          Salt Lake City, UT  84112
                                (801) 581-5617