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

: Use the command sudo storcli /c0 /eall /sall show and look for the DID (Device ID) column.

: Run sudo storcli /c0 /eall /sall show and look for the DID (Device ID) column. : Use the command sudo storcli /c0 /eall

If you have Dell/LSI management tools installed, use them for more detail: storcli /c0 /eall /sall show (Look for the DID column). MegaCli -pdlist -a0 | grep "Device Id" . 2. Run the Correct smartctl Command MegaCli -pdlist -a0 | grep "Device Id"

If you are using SATA drives behind a MegaRAID controller, you might need to combine flags: smartctl -a -d sat+megaraid,4 /dev/sda Use code with caution. Copied to clipboard 3. Summary of Key Flags smartctl megaraid,N ( how to find the right value for N ? ) Copied to clipboard 3

This message appears because smartctl (part of the smartmontools package) expects to communicate directly with a physical disk. However, a RAID controller presents a (e.g., /dev/sda , /dev/sdb ) to the operating system. The OS sees only the logical array, not the individual physical disks behind the controller. To get S.M.A.R.T. data from each physical drive, you must bypass this virtualization using the -d megaraid,N flag.