Might not remember the details correctly but when I was younger and stupider I read a lot about how great one of the open source NAS OSs (FreeNAS?) and ZFS were

Might not remember the details correctly but when I was younger and stupider I read a lot about how great one of the open source NAS OSs (FreeNAS?) and ZFS were from fervent fans. I bought a very low spec second hand HP micro server on eBay and jumped straight in without really knowing what I was doing. I asked a few questions on the community forum but the vast majority of answers were "Have you read the documentation?!" "Do you have enough RAM?!". The documentation in question was a PowerPoint presentation with difficult to read styling, somewhat evangelical language, lots of assumptions about knowledge and it was not regularly updated. It was vague on how much RAM was required, mainly just focused on having as much as possible. Needless to say I ignored all the red flags about the technology, the hype and my own knowledge and lost a load of data. Lots of lessons learnt.