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Re: fs block level syncing



Hi, here's an article about asynchronous block level replication:

http://www.linuxjournal.com/article.php?sid=7265

HTH


On Thu, Feb 12, 2004 at 12:51:36PM -0500, Paul Raines wrote:
> 
> Right now we do a lot of hard to hard disk backup by using rsync to weekly
> "mirror" the source filesystem to a backup filesystem. This works fairly
> well for most sources.  However, one issue with rsync is that simple things
> like changing the file name or directory name cause the whole file or
> directory structure to get recopied over a previous sync. Also, like for
> mail spools, large files that simply get appended to get the whole file
> recopied.
> 
> Does anyone know of something that syncs an ext2/3 fs to another
> at the block level which result in less data transfer?
> 
> -- 
> ---------------------------------------------------------------
> Paul Raines                   email: raines nmr mgh harvard edu
> MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging
> 149 (2301) 13th Street        Charlestown, MA 02129	USA   
> 
> 
> 
> 
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-- 

Regards, Isaac
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