I have two identical hard drives :
- HDD1 (main) : for common use
- HDD2 (back up) : for back up
I would like to keep HDD2(back up) identical to HDD1(main), without beginning by erasing everything on HDD2(back up), then copy again HDD1(main) to HDD2(back up). Is it possible with Grsync or any other ?
If not, does it means that after re-install my os in few years, I will have to erase again HDD2 (back up), to copy again HDD1 on it ?
Thanks a lot for your help !
