A Balanced Backup Solution

 There are so many different variables for loss of data that a 3 legged stool backup strategy is what makes sense.  You could have a weather catastrophe, regardless if its flood, tornado, hurricane. There is also employee sabotage, theft, and the unforgettable "oops, I deleted a folder".

Below is my recommendation to avoid most types of catastrophes.

PC to PC – Most likely, your system already has a network.  Ask your tech to share a drive on a different department’s PC, install SecondCopy, and synchronize the files from your server to that PC. This can act as a "Secondary Server" if you map that department’s PC with a drive letter on the other PCs.

Cloud – I use Dropbox, because I want to offer my clients what works and what has proven to be efficient, trustworthy & secure. Dropbox has never failed me. The worst thing that ever happened is that once I had a conflicting file, so it created 2 versions.  Each version was date and time stamped so that I could determine which file I needed. The technological friendliness in Apple & Android is fantastic. This solution also simplifies record keeping.  For instance, you can take a picture of any receipt or document and upload it directly to the server.

USB – Many people use a USB drive as a backup. Unfortunately, USB drives tend to crash more than internal drives. Additionally, some USB drives use proprietary formatting schemes. Regardless, they can be used as your "offsite backup drive." When a hurricane is coming, you can always stick your drive in your pocket and leave with it.  This can be achieved by using SecondCopy to sync your files from your server to the USB drive. SecondCopy copies native files rather than proprietary formatting schemes.

There are other types that can be used as a precaution as described here.