Hi, --- Ow Mun Heng <Ow.Mun.Heng@xxxxxxx> wrote: > On Wed, 2004-05-26 at 11:42, David Maynard wrote: > > I would suspect that some of the source files are > "sparse." Ie. there are > > "holes" in the middle of them where space hasn't > been allocated in the > > source directory. Some applications that use > random file access will create > > sparse files. A simple copy operation that > doesn't look for sparse files > > will fill in the holes, causing the copy to take > up more space than the > > original. > > > > I haven't tried it (at least not recently), but > rsync appears to have a > > "--sparse" (-S) option. Try using that in > addition to -av and see if that > > changes the results. GNU tar has a similar > option. > > Actually, if you're trying to copy all the files > from A to B, where B is > a Fresh directory, It's advisable to use GNU Tar. > it'll speed up the > transfer and it'll ensure that permissions are kept > as they should. > > After tha Rsync them for incremental backup etc. > > my 2 cents For the people following this sage here is the result of the rsync withOUT the -S option: /dev/md6 85419328 79678740 1401448 99% /data01 /dev/hdf1 241263968 124262976 117000992 52% /data02 So the problem is sparse files. I wonder if tar takes this into account also? Michael. Find local movie times and trailers on Yahoo! Movies. http://au.movies.yahoo.com
