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

Here's an example:

/dev/sda -d scsi # /dev/sda, SCSI device /dev/bus/0 -d megaraid,0 # /dev/bus/0 [megaraid_disk_00], SCSI device /dev/bus/0 -d megaraid,1 # /dev/bus/0 [megaraid_disk_01], SCSI device Here's an example: /dev/sda -d scsi # /dev/sda,

If you are a system administrator or a DevOps engineer managing Dell PowerEdge servers, you have likely encountered the frustrating smartctl open device /dev/sda failed error. This issue occurs when using the smartmontools utility to check the SMART health status of physical drives hidden behind a MegaRAID controller, such as a Dell PERC (PowerEdge RAID Controller). Because the operating system sees the RAID logical volume ( Please try adding '-d megaraid,N' : The /dev/sdX

smartctl open device: /dev/sda failed: DELL or MegaRAID controller? Please try adding '-d megaraid,N' Please try adding '-d megaraid

: The /dev/sdX device passed to smartctl does not need to be the exact physical disk you are targeting—it is merely a handle to access the RAID controller. The -d megaraid,N parameter tells the controller which physical disk to query.