Quick question for you since it seems like you are very knowledgeable. I am the sole back end developer for a greenfield web application that is very data heav

Quick question for you since it seems like you are very knowledgeable. I am the sole back end developer for a greenfield web application that is very data heavy. The application is still in alpha at the moment, but part of the development process involved prepopulating the database with about 10 mil rows or so spread out over about 15 tables. Nothing too crazy. However, once the application is launched I expect to have exponential growth in data due to the nature of the application. Currently, this application is set up on Linode. The database server is standalone and I have the ability to spin up multiple application machines and a load balancer. Each of these application machines read from and write to the single database machine. The database machine itself has full disk image backups taken every 24 hours, 7 days, and month. I also do a manual snapshot from time to time. On top of this I also usually dump into a tar file on my own external drive every once and a while as well. I'm fairly new to devops stuff and most of my experience involves building applications and not necessarily deploying them. I'm wondering if what I'm doing as far as backups and stability is enough or if I should be incorporating other methods as well. Have any thoughts?