On Mar 9, 2011, at 1:23 PM, Chris Murphy wrote:
> > > On Mar 9, 2011, at 11:19 AM, Dan Shoop wrote: > >> >>> So these files take up zero sectors on disk since they are stored in the >>> Attribute File. >> >> Again, no. > > Apparently you are unfamiliar with ls -ls and have not done this on /usr/bin. > Fully 1/3 of the executables there are taking up 0 sectors yet they are not > zero byte files. If you hfsdebug them, 0 byte data fork, 0 byte resource > fork, all is in the attributes file, the space penalty for which was taken > when the volume was formatted. Further if you CCC these files (same as rync), Disk Copy (same as asr) these files, Finder copy, or cp them, they are no longer written this way. The data is uncompressed, and is stored in the data fork only. A recent CCC clone *and* asr copy disk to disk, became 2GB larger than the original, same number of files. So again, not identical. I have not tested Super Duper so I do not know what the result is. But Time Machine restores are identical, in so far as the files it chooses to restore (which are not all of them - no cache files are backed up which is fine with me, and most of the hidden "sandboxed" cache files in /private/var are also not backed up). Chris Murphy _______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
