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

Drive Information : ================= ------------------------------------------------------- EID:Slt DID State DG Size Intf Med SED PI SeSz Model ------------------------------------------------------- 252:0 4 Onln 0 1.818 TB SAS HDD N N 512B ST2000NM0001 252:1 5 Onln 0 1.818 TB SAS HDD N N 512B ST2000NM0001 ------------------------------------------------------- Use code with caution.

: The logical device node presented by the controller to the OS.

# List physical drives and their IDs storcli /c0 /eall /sall show Use code with caution.

: Even if you have multiple physical drives, you usually use the same logical handle (e.g., ) for all of them; the part is what differentiates the physical disks. MegaCli commands to check for specific media or predictive failure errors? Check for Megaraid (and other Physical disk/raid) problems : Even if you have multiple physical drives,

, replacing N with the correct index. If you are still struggling to get the correct data,

RAID volumes (virtual disks) will appear with the vendor name LSI or DELL and Type: Direct-Access . Physical disks attached to the controller may also be listed, with their channel and ID information.

Look closely at the resulting output table for the column: If you are still struggling to get the

This issue typically arises because smartctl attempts to scan /dev/sda as a standard, standalone SATA or NVMe drive. However, on a system equipped with a hardware or an LSI MegaRAID card, /dev/sda is actually a logical virtual disk managed by the controller firmware. The operating system cannot see the underlying physical drives directly, which blocks the standard S.M.A.R.T. commands.

When smartctl cannot retrieve data (e.g., due to "ATA return descriptor not supported"), the RAID controller's management tools are indispensable.

If you are trying to run smartctl on a Dell server with a MegaRAID controller, you must tell the command which controller and which physical drive to query. When smartctl cannot retrieve data (e.g.

Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: LSI Model: MR9271-4i Rev: 3.27 Type: Direct-Access Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD5003ABYX-0 Rev: 01.0 Type: Direct-Access Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD5003ABYX-0 Rev: 01.0 Type: Direct-Access

Run the native device discovery scan command provided by Smartmontools: sudo smartctl --scan Use code with caution.