For now my server doesn’t have very important data most of it are your “Linux isos” I can just download again and I’m thinking of starting to move my file and photos to the server but in afraid. What if I get a ransomwarei don’t realize and all my backups get encrypted too? Or if the backups are corrupted and my disks breaks? But also I’m afraid about cloud because I’ve seen some posts about people getting their google accounts closed without notice for breaking TOS (maybe they did something wrong maybe not).
You SHOULD be scare of losing your data. In fact it’s a very likely outcome if you’re storing data and you don’t know what you’re doing. This is true of every electronic storage format. If you’re not ready to lose everything, you have periodically practice recovery from backup.
Over the years, i’ve met tons of novice computer users who tell me “I’m worried my files will get hacked if I store them on dropbox / cloud”. I always set them straight: the number one risk for you is losing your own data, not data theft, unless somehow your files contain industrial secrets worth hundreds of millions of USD.
I consider myself an experienced computer user and developer, having had various roles that border on sysadmin. I don’t trust myself to run my DIY NAS. For the stuff that matters, you should fear complexity as it 's a source of errors. You should doubt yourself at every step. Practice recovery. This is true for everything. I messed up my pfSense router config this weekend, it wouldn’t boot. I took the opportunity to practice recovering from backed up config (I should have done that much earlier).
lol