Originally posted by diginode
Backing up your binaries is probably pointless if you aren't backup up the filesystem as an image. With modern hardware, it is more probable that the whole filesystem or disk burns all at once, rather than a single file. Even if you have corrupted executables, you can reinstall them easily through package management.
Just make sure you have all your data files backed up and the SQL exported frequently.
i was thinking about something like installing a new linux distribution like Fedora (my primary drive has RHEL, but i don't know if it's allowed to copy it) and configuring the httpd server and so on
and then backing-up important data (DNS records, httpd info, /home, etc.)
if I have a problem in the primary drive, I can boot with the second one while the primary is not fixed
then restore the datas to the primary and be back to it...
so the second one would be used only in an emergency