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

After initiating a test, monitor its progress with:

To bypass this and query the physical disks directly, you must use the -d megaraid,N option. This flag uses the MegaRAID , a specific interface in the Linux kernel that allows tools like smartctl to send commands directly to the physical drives behind the RAID controller. After initiating a test, monitor its progress with:

If you get a No such device error, the disk numbering might not start at 0. In some scenarios: In some scenarios: NVMe drives behind a Dell

NVMe drives behind a Dell PERC 11 or 12 (e.g., H755) are often passed through as NVMe namespaces, but if they are RAIDed, you may need -d nvme-megaraid,N on newer smartmontools (version 7.3+). but if they are RAIDed

But smartd doesn't usually accept multiple -d per line. Better to add separate lines:

for i in 0..30; do echo "Testing megaraid,$i" sudo smartctl -i -d megaraid,$i /dev/sda done