In this output, the physical drives appear with Type: Direct-Access and Vendor: ATA . While this method does not explicitly give you the DID , it helps you verify that the drives are being detected and often shows you the controller‑specific ID under the Id: field.
Fixing "smartctl open device /dev/sda failed: DELL or MegaRaid controller"
Where <N> is the (not the SCSI ID). N ranges from 0 to N-1 , where N = number of physical drives behind the controller.
When attempting to run a simple smartctl -a /dev/sda (or smartctl -i /dev/sda ) on a Dell PowerEdge server (or any system using an LSI MegaRAID or Dell PERC RAID controller), you often encounter this frustrating output:
In this output, the physical drives appear with Type: Direct-Access and Vendor: ATA . While this method does not explicitly give you the DID , it helps you verify that the drives are being detected and often shows you the controller‑specific ID under the Id: field.
Fixing "smartctl open device /dev/sda failed: DELL or MegaRaid controller"
Where <N> is the (not the SCSI ID). N ranges from 0 to N-1 , where N = number of physical drives behind the controller.
When attempting to run a simple smartctl -a /dev/sda (or smartctl -i /dev/sda ) on a Dell PowerEdge server (or any system using an LSI MegaRAID or Dell PERC RAID controller), you often encounter this frustrating output: