solution with rsync,

[hamsaeed]

Hi dear,
can you help me for :
I use rsync for backup files in source folder to another dest folder, and
i want save differences as separately ,that i can restore a spatial difference backup ?

thanks for your help,

[Parkcomm]

Have a look at this https://blog.interlinked.org/tutorials/ ... chine.html

[hamsaeed]

Hi dear,
thanks for your help,
in continue question,
after build first backup,
i delete many files from source , and i want backup differences in source with first backup in second backup,
what must backup in second backup ?
i when delete files in source and backup due to first backup , in second backup not exist files?

THANKS,

[Parkcomm]

Hey Hamseed - your English is a little challenging, i hope I understand your question.

The incremental backup process uses symlink. Lest say we delete file 3 in the diagram.
Backup 1 will have a symlink to File 3, Running Backup 2 will remove the symlink but the file is still there,

If you go to directory 1 you will see the file backed up.

Does that answer your question?

[hamsaeed]

very Thanks,
ok, Excuse me friends,
I impact another problem with rsync , and it is:
I need store backup in another filesystem (partition) in system ,
but , when i use --link-dest for backup in rsync that ,it is without losing much space,
output include error :
Invalid cross-device link

I search and found www.areca-backup.org that not have this problem ,
do exist any tool like areca(www.areca-backup.org) , that be in command line mode?

very Thanks for your Help,

[Parkcomm]

files cannot be hardlinked across different filesystems

[hamsaeed]

ok, do exist another solution?

[Parkcomm]

The solution in the link copies all the files to a single (remote) file system and then hard links on that file system, not across filesystems. IS that what you mean/

[hamsaeed]

very thanks from your helps,