dd if=/dev/hda of=/dev/hdb
this is a very useful command. this would allow you to make an very good copy of a hard drive, partition, whatever. However, it will overwrite ALL info on your target (of) drive....
However, 2 things... it does not automatically copy a MBR, so coping to another dirve is not going to be as simple as plugging it in and turning it back on if your HD does fail. But, it is a very viable option.
Also, 2, rsync would allow you to have a fully function backup server. updated at whatever interval you wanted it to be, that you could just replace your failed server with in a matter of minutes.
the best option would be both... since a spilled coffee could easily damage both HD's or use another backup media, such as to cdr, so that it is not directly attached to your box.
Last edited by ezra143; 01-09-2004 at 12:19 AM.