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

One will fail (non-existent drive) or return info for the correct disk.

Resolving smartctl "Open Device Failed" on Dell MegaRAID Controllers One will fail (non-existent drive) or return info

On RHEL/CentOS:

occurs because hardware RAID controllers (like Dell PERC or LSI MegaRAID) hide individual physical drives from the operating system, presenting only a "virtual" drive instead. To view the SMART health of a specific physical disk, you must bypass the RAID abstraction using a specialized "cheat code" syntax. Unix & Linux Stack Exchange 1. Identify the Correct Device ID ( " in the command represents the Physical Drive ID One will fail (non-existent drive) or return info

I am running smartctl on a Dell server with a MegaRAID controller. The command smartctl open device /dev/sda failed. One will fail (non-existent drive) or return info