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laurent22 / rsync-time-backup

Time Machine style backup with rsync.
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Possible use of rsync snapshot? #103

Closed BenjaminHCCarr closed 6 years ago

BenjaminHCCarr commented 6 years ago

More a question than an issue. Have you looked at rsnapshot (https://github.com/rsnapshot/rsnapshot)?

This has been implemented on linux: https://www.lynda.com/Linux-tutorials/Backup-snapshots-rsync/604236/642414-4.html

I found your code from the PR to homebrew: Homebrew/homebrew-core#21065

But have been using plain rsync over ssh for remote backups and would prefer to move to versioning but haven't had time.

If this is something you explored and disregarded I would love to hear it. My remote targets are EXT4 and ZFS (BSD/OpenZFS).

braian87b commented 6 years ago

I think that this code is intended to behave as more as possible equal to the original Mac TimeMachine's backups... but using rsync... rsnapshot have similar feature, but have some differences on directory creation and how it needs to be configured, it takes 5 to 15 more minutes more to configure and test in comparision to this script that is more limited but also simple.

Since I even had the need to have unique snapshots (having each snapshot only the modified files between previous backup, I created a script that compares each file and if it has the same inode then removes it from the previous backup. In my work it is more esier to users to understand that they can find the previous versions of files in different snapshot, if the file is not there then is because the file have not been modified at that time... that also allow to remove empty directory trees of snapshots at some times where none of the files were modified in any way.

Im not the main developer, just an user of this script, but in search of this script I've tried rnapshot along with I think about other three similar solutions (other time machine's like scripts, even here on github) and this one was the better that fitted well my needs., Simple to use, worked perfectly on my Debian box, worked well with cron, I had a cron that goes to one script that mount, backup (create another snapshot using this script) and then run another script that removes that duplicates and delete the useless empty directory trees.

thomas-mc-work commented 6 years ago

I've used that one before. But rsync-time-backup is much more lightweight and easier to install (no perl dependency) which i like very much.

laurent22 commented 6 years ago

I think rsnapshot also uses rsync. Rsync-time-backup is just a different approach