how to backup storage disk as clone continuously without raid

poseidon2399

Reputable
Sep 21, 2015
34
0
4,530
Hey community,

I've recently broke my raid1 configuration and removed one of the hdd to use as external so my backup is safer.
What I need right now is a utility that calculates the differences between the internal hdd and external hdd and makes the external backup disk same as the internal without having to format and copy all files every time. I tried searching in google but I got nothing but advertisements of backup products that weren't even remotely helpful.

Thanks in advance.