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Re: [Networker] mtime directive question?
2009-06-18 21:07:53
A Darren Dunham wrote:
On Thu, Jun 18, 2009 at 07:50:46PM -0400, George Sinclair wrote:
Kind of a stupid question here (sigh ...) but have to ask.
Thanks, guys! It sometimes costs money to ask. Wish I was paid, though,
for all the questions I've asked since I was born. I'd be wealthy -
actually I would have reached that point a long time ago - and could
move away and never have to ask any more questions, but that would be
depressing, so maybe it's just as well. LOL! But it often costs more not
to ask. Regardless, the explanations and points raised in people's
answers are often more important and illuminating than the question.
This forum is great!
George
I have a client side directive (/data/dir1/.nsr) with the following:
+mtimeasm: .?* *
We created this because there were problems wherein the change of file
status time (not modtime) was getting affected on a ton of files every
night, and this was causing huge incrementals. By instituting this
directive, the problems went away, and we were subsequently only backing
up files whose mod time changed as opposed to the default which goes by
ctime (that's what I call it).
OK, so what happens if we run a level full on /data? Will a level full
still capture all the files regardless of their ctimes or mtimes, or
would this directive force the full to only capture files whose modtimes
had changed?
The first one. Normal backups (uasm) and this one (mtimeasm) compare
the timestamps against the time of the previous relevant backup to
decide if it should be gathered. A full backup has no previous relevant
backup, so they'll never ignore a file.
I want to say that the full will get everything regardless except for
anything that is being skipped (e.g. null', 'skip') by some other directive.
Right.
--
George Sinclair
Voice: (301) 713-3284 x210
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