Unless there's a better solution, I'd like to use SpeedFan to watch hard disks on a host. However, it offers quite a lot of settings in its Configure > Events > If section, such as Raw Read Error ...
I installed speedfan and used it to look at my HDDs' smart data. All 5 of my drives appeared without issue. However, I have now added an additional 2 SATA HDDs to my existing (already in use) SATA ...