Hi
I have my /home partition on a 2TB HDD drive about half full. Should be doing regular backups but not in the habit.

What is better?
A. Purchase a second 2TB to create a Raid1 mirror or
B. Purchase a second 4TB drive for backup purposes.

If case B, should I get a USB3.0 adapter or similar so that I could just plug the HDD, let it do the backup and unplug and store it? Or is it better to install it on another networked pc and do it through the network?

Is there a better, easier, less troublesome option to keep the data safe that does not involve the cloud?

This is a home network

Thanks


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