If you have Dell/LSI management tools installed, use them for more detail: storcli /c0 /eall /sall show (Look for the DID column). MegaCli -pdlist -a0 | grep "Device Id" . 2. Run the Correct smartctl Command
Find the appropriate storcli RPM or DEB from Broadcom. Run Inquiry: storcli /c0 show Find Drive ID: Look under the "PhysDrv" column. Method 3: Testing Other Device Types
Before specifying the parameter -d megaraid,N , you must determine the actual hardware physical drive IDs mapped by your storage controller. You can discover these using native smartctl scanning routines or dedicated hardware CLI tools. Method A: Built-in smartctl Scanning If you have Dell/LSI management tools installed, use
smartctl -a -d megaraid,0 /dev/sdb
Once you have identified your disk coordinates, append the target block syntax to isolate individual components. Querying an Individual Enterprise SAS Drive Run the Correct smartctl Command Find the appropriate
The complete solution requires bypassing the abstraction layer of the hardware controller using specific device arguments ( -d ) to target the physical disk IDs ( N ). Why the Error Occurs: The RAID Isolation Layer
Do not guess this integer. Assigning randomized slots can result in incomplete mapping or target invalid indexes. Use one of the native discovery tools detailed below to identify your true physical topology. Method 1: The Native Smartctl Scan Command You can discover these using native smartctl scanning
smartctl -a -d megaraid,0 /dev/sda
Even when using the correct megaraid,N syntax, you may still encounter issues:
storcli /c0 /eall /sall show
sudo smartctl -l selftest -d megaraid,N /dev/sda