Folks
I have been using rsnapshot for years now. The only problem I've found is that it is possible to run out of inodes. So my heads-up is that when you create the file system, ensure you have more than the default inodes - I usually multiply the default by 10. Otherwise you can find your 1Tb USB drive failing after 259Mb and you can't then recover the files. Rather embarrassing.
On Mon, Nov 9, 2015 at 9:31 PM, Alessandro Baggi alessandro.baggi@gmail.com wrote:
Hi list, how to perform a differential backup using rsync?
On web there is a great confusion about diff backup concept when searched with rsync.
Users says diff because it copy only differences. For me differential is backup from last full backup.
You can use "newer" options of the find command and pass the file list to rsync or scp to "backup" only those files that have changed since the last run. You can keep a file like .lastbackup and timestamp it (touch) at the start of the backup process. Next backup you compare the current timestamp with the timestamp on this file.
HTH, -- Arun Khan _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Best wishes
John
John Logsdon Quantex Research Ltd +44 161 445 4951/+44 7717758675