IMHO multiple backups are not the way to go forward. IMHO saving your stuff to a cloud service is the way to go.
I'm not a fan of online backups. What happens if you need to recover a file and your internet connection is down? My connection was down for 8 hours earlier this week due to a cut fiber optic cable. I would hate to have waited that long just to recover a file I needed.
What happens if your hard drive dies? You can't boot up the operating system to run the program you need to recover your files. So you have to reinstall the OS, reinstall the backup software, THEN you can recover your files. That's a lot of work, and takes a lot of time.
Another problem with online backups is they are SLOW. If you only have a few Word files or photos to backup, that might be OK. But if you generate any significant data, like editing video or recording TV shows, an online backup becomes unusable. I can easily generate 10-50GB of new data every day.
I've also found that many online backup services only back up selected files or folders. Inevitably, the file or folder you need is the one that wasn't included in the backup.
Also, who's to say your backup service will be there when you need it? You backup regularly thinking you are safe, but the company goes out of business when you need to recover your files. Or maybe the site is hacked and your data is corrupted. Or worse yet, someone uses your data without your knowledge.
I prefer to perform an automated full image backup nightly to a 3TB external hard drive. I use "Macrium Reflect" but there are plenty of other backup options out there. This drive is my "oops" drive. If I accidentally delete a file I can recover it quickly and easily from the backup drive. It's also my emergency drive in case my main drive fails completely. I can install a new hard drive, boot up a recovery program, and restore ALL of my data, programs, and operating system quickly and easily.
However, an always connected backup drive is still vulnerable to computer viruses, power surges, fires, theft, etc. So about once a month I swap that drive with a second drive I keep in a safe deposit box at the bank.
Then, as an added layer of protection, I burn my most valuable data (photos, videos, financial records, etc.) to BluRay data discs once a year or so. If files are corrupted on my hard drive without my knowledge, those corrupted files could theoretically migrate through my backups. Data on BluRay discs won't change once they are written, so I know once I burn the data it's there for good. Of course, BluRay's are slow and unreliable for the long term so I only use them as a extra protection layer, not as my primary backup.
You have do decide how valuable your data is to you. Nearly every aspect of our life is stored on my computer, irreplaceable photos, home videos, financial records, health records, genealogy records, reference material, music, program source code, and my business records. Losing data is not an option. I have to be able to backup quickly, restore quickly, and be sure I have some way to recover my data even if the house burns down, my internet connection is gone, or my backup drive fails. I'm not going to trust a third party service to handle this for me.
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