smartctl -H -d megaraid,2 /dev/sda
If you have more than one RAID controller (e.g., /dev/sda and /dev/sdb from different PERC cards), specify the correct device:
Security and permissions
Replace N with the ID found in the previous step (e.g., 0 , 1 , 11 , etc.). : smartctl -a -d megaraid,N /dev/sda .
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