What are the realities in using a non Windows 7 backup program to a scheduled, daily, incremental backup from one external 3TB HDD to another? What measure of risk is involved in seeking to restore the backup data to the original HDD or another external HDD? All advice gratefully received.
If I understand what you are describing, I have used free Synchredible to do that for years, sometimes several times a day.
Just files, not the O/S, right ?
Synchredible is easily programmable to synchronize things just like you want it to and can be set to automatically run many different recipes on different schedules or manually only when you click the button.
I work almost exclusively with photographic image files; and, that is one field where one had best back things up almost as quickly as they are produced; elsewise, a lot of work can be lost.
Restoring things is as simple as changing the direction check-box, or changing the target to source and then the new target can be either the old source or anything you want it to be.
And, it is QUICK !
I hope this helps.
On EDIT: As for AOMEI, it does some things okay and the free version can do things that must be paid for in other programs; that being said, I wasted a good part of my life trying to get AOMEI System Imaging feature to work reliably, or work at all.
After about a dozen emails back and forth to one of their own people, he told me that he personally had no better luck than I was having and used Macrium instead.
On that advice, I ditched AOMEI and got Macrium and my life has been much better since.