FreeNAS gets fairly close to this out of the box. My home server runs ZFS with RAIDZ2. By default, I think, there's a weekly cronjob to scrub the ZFS pool (inte

FreeNAS gets fairly close to this out of the box. My home server runs ZFS with RAIDZ2. By default, I think, there's a weekly cronjob to scrub the ZFS pool (integrity check everything, as I understand it), and then the results of that scrub are emailed to me. I don't believe it has a web interface with historical checks, although I could be wrong. That said, it might be stored in a log file somewhere. I also don't have an external service that would send me an email if it failed to run. That said, I would get an email if cronjobs had a mysterious error; otherwise, if the server itself was dead, my data would not be accessible on my home network, so I'd notice. If the home server dies tragically, well, I hope Google Cloud Storage is doing similar integrity checks -- that's where my offsite backups are.