compare questions

[damian lee]

Hi there

So all I need to do is set it up and see what will happen.
Thanks for your kindness help.

Damian

----- Original Message ----- 
From: "jw schultz" <jw at pegasys.ws>
To: "damian lee" <damianjllee at yahoo.com.tw>
Cc: <rsync at lists.samba.org>
Sent: Wednesday, August 20, 2003 10:34 AM
Subject: Re: compare questions


> On Wed, Aug 20, 2003 at 10:23:10AM +0800, damian lee wrote:
> > sorry to bother you again!!
> > 
> > I still didn`t get it.
> > Maybe I didn`t make my self clear.
> > I have a old_FTP server and the data is about 4G.
> > I also have a copy for those datas.
> > Now I have to make a mirror site for the old_FTP site with the copy.
> > So My plan is to build a new FTP server and put the copy in it.
> > But the file time of those data is diferent from the old_FTP server.
> 
> Why?  Almost any file copy utility can preserve mod_times.
> 
> > If I use rsync as the mirror solution.
> > How I do to skip the first_time_transfer.
> 
> You can't skip that if you are ever to use mod_time.
> 
> > I don`t want the 4 Gigabytes of data transfer over internet.
> > Can I use the touch commend to adjust the file_modify_time,
> > to make both of old_FTP_files and the copy_FTP_files become identical,
> > to skip the first_time_transfer.
> > 
> > And I am really sorry to bother you again.
> > Thanks in advanced.
> 
> Normally i'd say don't fret it.  If the data is the same
> rsync will only use a little under 1% of the file size
> transmitting blocksums to update unchanged files.  For 4GB
> that would amount to about 40MB so it may be worth
> transmitting the mod_times and touching the files.
> Even better would be to copy the data in a way that
> preserves mod_time.
> 
> > 
> > Damian
> > 
> > ----- Original Message ----- 
> > From: "Wayne Davison" <wayned at samba.org>
> > To: "damian lee" <damianjllee at yahoo.com.tw>
> > Cc: <rsync at lists.samba.org>
> > Sent: Tuesday, August 19, 2003 1:21 PM
> > Subject: Re: compare questions
> > 
> > 
> > > On Tue, Aug 19, 2003 at 09:59:38AM +0800, damian lee wrote:
> > > > And does It means I can copy the files from the old server,
> > > > and use the touch commend to set the modify time.
> > > 
> > > No!  That would _change_ the modify time.  Simply copy them with the
> > > time preserved.  Rsync can do that for you.
> 
> -- 
> ________________________________________________________________
> J.W. Schultz            Pegasystems Technologies
> email address: jw at pegasys.ws
> 
> Remember Cernan and Schmitt
>