FSLogger is like inotify but for the whole disk. Inotify is just for files and directories; it doesn't scale to millions of directories. It also would require a full rescan on every boot because installing the watches will take so long you will miss changes.
I "guess" because no backup program for Linux supports watching whole filesystems for events. There are ways it could happen with recent kernels, but they are poorly documented and not designed for backups. Nobody has done it so the performance impact is also unclear.
I "guess" because no backup program for Linux supports watching whole filesystems for events. There are ways it could happen with recent kernels, but they are poorly documented and not designed for backups. Nobody has done it so the performance impact is also unclear.