This error occurs because the operating system does not have direct access to the physical hard drive. The RAID controller acts as an intermediary, presenting logical volumes (like /dev/sda ) to the OS while hiding the physical disks. To access the SMART data of the physical disks, you must communicate through the RAID controller driver.
: On some systems, you may need to use /dev/bus/0 instead of /dev/sda to ensure stability. Recommended Monitoring Configuration This error occurs because the operating system does
Many newcomers try -d megaraid,1 expecting the first drive, but it is 0 . 1 expecting the first drive