[SOLVED] Admin, please delete - answer found in different topic.

[tomtom13]

Admin, please delete - answer found in different topic.

 

[fabian]

host/ct backups still need to read the full data (to find out if it has changed), even for incremental backups. for qemu backups, we can utilize a feature of qemu that tracks which parts of a VM disk have changed since the last backup (as long as the VM is not shut down in the meantime) to skip reading all the unchanged data.

 

[tomtom13]

Sorry Fabian, I've found exactly this answer in different topic. If admin would kindly delete this thread to not clog the forum it would be nice.
BTW, thanks for rapid reply.