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

A standard command like smartctl -a /dev/sda expects to communicate directly with a physical block device using basic ATA or SCSI protocols. Hardware RAID controllers deliberately break this direct path to manage the array independently. When you issue a direct S.M.A.R.T. query to /dev/sda :

You cannot guess this number, as it doesn't always start at 0. Use the storcli (or older MegaCli ) utility to find the (Device ID). Command : sudo storcli /c0 /eall /sall show

If you have any other questions, please share the output of smartctl --scan or the storcli commands you run. That information will make it much easier to offer specific guidance for your configuration. A standard command like smartctl -a /dev/sda expects

: /dev/sda -d megaraid,0 -a /dev/sda -d megaraid,1 -a Troubleshooting Persistent Failures If you still see failures after adding the -d flag: Error with smartctl on Dell/Megaraid · Issue #660 - GitHub

The error message gives you the exact clue needed. You need to use the -d megaraid device type followed by the specific ID ( N ) of the drive in the array. 1. Identify the Target Device and ID query to /dev/sda : You cannot guess this

Once you have the drive ID (let's say it is slot 0), use this command structure: sudo smartctl -a -d megaraid,0 /dev/sda Use code with caution.

If you tell me you have (e.g., H730, H740P) and whether you're using SAS or SATA drives , I can provide specific storcli commands to identify the exact drive IDs. That information will make it much easier to

For environments monitoring array metrics through an InfluxDB stack, configure your telegraf.conf file by breaking out instances per drive slot index:

If you have the RAID management tools installed, you can list all physical drives and their Device IDs sudo storcli /c0 /eall /sall show (Look at the "DID" column). sudo megacli -pdlist -a0 | grep "Device Id" Server Fault 💡 Common Variations