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Number   :  5457
Date     :  2003-09-03
Author   :  alizardx
Subject  :  Re: a warped mirror image?
Size(KB) :  1


Thanks.
A.Lizard

--- In xxcopy@yahoogroups.com, "garrydeane"  wrote:
> --- In xxcopy@yahoogroups.com, "alizardx"  wrote:
> > I'm attempting to mirror my C: drive onto my D: drive for
> > backup purposes using this command:
> > C:\WINDOWS\COMMAND\XXCOPY.EXE C:\ D:\ /CLONE 
> > 
> > I just ran backup. 
> > 
> > Here is the drive space used on each drive:
> > 
> > C: 12.6 GB
> > D: 11.8 GB 
> > 
> > D: is a removable drive on a mobile rack.
> > 
> > This doesn't look right, since my intent is for C: and D: to
> > be identical. (D: is also bootable, if C: fails, I simply
> > want to plug in D: as a replacement)
> > 
> > Should I be doing something else?
> 
> If those numbers are the drive space used, they may well be
> different if the drive is formatted with different cluster
> sizes due to different drive capacities. It's also possible
> that some files didn't get copied because they were in use.
> You can quickly check whether the contents are the same with
> xxcopy c:\ d:\ /clone /L or by simply repeating the /clone
> operation and checking that the exit code is not greater than
> 100. If they files are the same, don't worry about the difference
> in usage.
> 
> Garry



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