What is the best way to do incremental ploop OPENVZ backups?

Question

OpenVZ

Previously, I used simfs rather than ploop in the OPENVZ container . An incremental backup was made using rdiff , which was performed by cron.
What is the best way to do an incremental backup of a ploop OPENVZ container?
UPD1:
There is a script for an incremental ploop backup, but a new snapshot is created there and changes are already taken from it.
Does it make sense to make such incremental backups via snapshot, or is it easier to just pull out file-by-file changes from a mounted container in the old fashioned way?

Answer 1

There are off. dock , which says that either copy the mounted system file-by-file, or copy the entire image (but this will not be an incremental backup), maybe there are better ways?