Smartctl Open Device Dev Sda Failed Dell Or Megaraid Controller Please Try Adding 39d Megaraid N 39 Extra: Quality

Assuming you want to monitor a disk with a PD number of 2, the smartctl command would be:

This command will list all physical disks attached to the MegaRAID controller. Look for the disk you want to monitor and note its PD (Physical Disk) number. Assuming you want to monitor a disk with

megacli -pdlist -a0