We have a Ubuntu Server running Apache and PostgreSQL. We would like to backup the whole disk daily.
dd in Unix can be schedule to do so, but it seems that it cannot backup the running system. Also, if we just tar the root directory, what directories should be included? Such that when we install a new Ubuntu server on another machine, replacing the corresponding directories may make the new machine serve as the original machine.
Are there any other solutions for Ubuntu Server backup? Such as Acronis, Paragon or Ghost for Windows, which can be installed and scheduled task every night without shutting down the machine?