Reminds me of those monitoring dashboards printing lot of unexpected output from checks, which in turn doesn't expect not being able to interact with state files on a read-only filesystem, reporting the wrong state (i.e. critical instead of unknown), etc.
More fan of agents and an HA core for monitoring, than from direct push notifications, but still, used this smartd notifications like 15 years ago in Debian, and never realized of this issue (maybe because once the OS disc fails, we cared more about other issues than about the smartd notification).
Those were the years were you could try to put the mechanical disc in the fridge for some minutes and try again, or with some Seagate disks, change the electronic circuit for other disk of the same model and recover the data (they used to fail in the electronic part more than the magnetic plates).
More fan of agents and an HA core for monitoring, than from direct push notifications, but still, used this smartd notifications like 15 years ago in Debian, and never realized of this issue (maybe because once the OS disc fails, we cared more about other issues than about the smartd notification).
Those were the years were you could try to put the mechanical disc in the fridge for some minutes and try again, or with some Seagate disks, change the electronic circuit for other disk of the same model and recover the data (they used to fail in the electronic part more than the magnetic plates).