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

This happens because the controller hides the physical drives and presents them as a "Virtual Drive" to the operating system. The smartctl command tries to speak directly to /dev/sda (the SCSI virtual drive), but the RAID controller interrupts, not knowing how to translate standard SMART commands to the underlying physical disks. The Solution: Using -d megaraid,N

To bypass the virtual layer, you must tell smartctl which specific physical disk you want to inspect by providing its (represented as 1. Find the Physical Device ID (

Do you know the exact or MegaRAID controller model ? Are you using SATA or SAS drives? Share public link This happens because the controller hides the physical

Remediation & user guidance

When attempting to run smartctl, a popular command-line utility for monitoring and managing disk drives, on a Linux system, you might encounter an error message similar to: Find the Physical Device ID ( Do you

smartctl -H -d megaraid,2 /dev/sda

While /dev/sda is a placeholder, for many Dell servers, the device path /dev/bus/0 is also used successfully. The critical part is the correct megaraid,N parameter. The critical part is the correct megaraid,N parameter

: Run sudo smartctl --scan to see a list of detected devices and their corresponding IDs.

/opt/MegaRAID/MegaCli/MegaCli64 -pdlist -aALL | grep 'Device Id' to see the IDs for all disks. storcli /c0 /eall /sall show and look for the Smartctl Scan : You can also try smartctl --scan

If you are running an older Dell server utilizing the legacy MegaCli utility, use this command to find device parameters: