@someonesmall
@lemmy.mlSignal is probably the best option because it's as easy to setup as Telegram and others.
You can do that with ZFS. It's built-in integrierty check will automatically heal errors and tell you what drive has gone bad.
It's a good choice. Just avoid installing stuff from the AUR (at least no system packages)
I can also recommend zfs on debian. Even if you only using two disks you will be still protected from bit rot.