On Mar 9, 2011, at 8:55 PM, Dan Shoop wrote: > > On Mar 9, 2011, at 4:33 PM, Tim Roberts wrote: > >> >> On Mar 9, 2011, at 2:00 PM, Dan Shoop <[email protected]> wrote: >> >>> >>> In the case of CCC this is incorrect. If you're not seeing this behavior >>> you are either using it impropperly or have an older version. >>> >>> Dik Utility can copy files or block copy. In each case it preserves >>> properly but asr should be used instead. Note that in some case it may >>> uncompress compressed files depending on the target and operation type, but >>> this is not an issue. If it is, use asr. >> >> The underlying process that Disk Utility and CCC use is 'asr'. You can get >> finer control from the command line version though and it appears to run a >> bit faster. > > Because, they Disk Utility really isn't asr and CCC can use either a patched > rysnc or asr. > > You can tell Dik Utility and asr aren't the same with sc_usage or dtrace and > watching they're completely different behavior. > > -d >
CCC uses rsync for incremental backups, but for Block level clones it uses asr. http://help.bombich.com/kb/explore/clone man asr "asr is the backend for the Mac OS X Software Restore application that shipped on Macintosh computers as well as the Scan and Restore functionality in Disk Utility." Best, Tim Roberts _______________________________________________ MacOSX-admin mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-admin
