A standard command like smartctl -a /dev/sda expects to communicate directly with a physical block device using basic ATA or SCSI protocols. Hardware RAID controllers deliberately break this direct path to manage the array independently. When you issue a direct S.M.A.R.T. query to /dev/sda :
Once you have the Device ID (let's assume it is 0 ), use the following syntax to pull the SMART report: sudo smartctl -a -d megaraid,0 /dev/sda For SATA Drives: sudo smartctl -a -d sat+megaraid,0 /dev/sda A standard command like smartctl -a /dev/sda expects
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. query to /dev/sda : Once you have the
You will likely encounter the following exact error string in your terminal or system logs: Smartctl open device: /dev/sda failed: DELL or MegaRAID controller, please try adding '-d megaraid,N' Can’t copy the link right now
smartctl -a -d megaraid,N /dev/sda
