Modified file Stamp changing by 1 sec??

Rafael Pivato rpivato at cpovo.net
Wed Aug 25 17:20:23 GMT 2004


The time resolution is related to the filesystem not just the OS (FAT32 vs
NTFS).
NT 4 can handle 1 sec of granularity (due to NTFS). Windows 9x can not (no
odd second due to FAT32).
I am not sure about *nix systems.

---------
Rafael Pivato


----- Original Message ----- 
From: "Joseph Watson" <jtwatson at linux-consulting.us>
To: <smb-clients at lists.samba.org>
Sent: Wednesday, August 25, 2004 12:59 PM
Subject: Re: Modified file Stamp changing by 1 sec??


> Yes I am going from Windows to Linux.  I think this NT 4.0 box does have a
> file resolution better then 2 seconds, but I will have to check this.
> Thanks.
>
> -- 
> Regards
>
> Joseph Watson
>
> On Wednesday August 25 2004 11:35 am, Arne Henningsen wrote:
> > Hi,
> > when I was backing up files from Linux to Windows I had the same
problem. It
> > was because (some / all ???) Windows file systems have a file time
> > resolutions of 2 seconds. Thus, if the file time on Unix was, e.g. 7:17,
it
> > had to be on Windows 7:16 or 7:18, and thus there was quite often a 1
second
> > difference. However, you copied the files in the opposite direction,
aren't
> > you? Maybe you can figure out, if this is also the reason for your
problem.
> > All the best,
> > Arne
> >
> > On Wednesday 25 August 2004 17:20, Joseph Watson wrote:
> > > Hello,
> > >
> > >  I had a tap drive fail on my NT 4.0 server, so as a temperatry fix I
used
> > > smbmnt to mount the NT share on my linux box.  Then I used Kdar to
backup
> > > the files.  This worked fine, it took 24 hours to backup 30 Gigs.  The
> next
> > > day I did a incramentle backup, and it was 3.6 Gigs.  So I started
looking
> > > at what was changed and descovered that 90% of the backup are files
that
> > > the modified date was changed by 1 sec.  But the dates are sever
months or
> > > years on the past.  It is clear to me these files did not change, but
yet
> > > the date moved forward by 1 second.  I check the properties on the NT
4.0
> > > server and the linux box for some of these files, and they show the
same
> > > date.  But the full backup shows they were a second older the day
before.
> > >
> > > Has anyone seen this kind of thing before?  I don't know if the
problem is
> > > with NT, smbmnt or Dar, so I thought I might ask.
> >



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