Reviewing this output map reveals that while /dev/sda exists as a combined virtual target, the controller hosts underlying drives mapped internally as index coordinates 0 , 1 , and 2 . Method 2: Querying via StorCLI / PercCLI
[[inputs.smart]] devices = ["/dev/sda -d megaraid,0"] [inputs.smart.tags] disk_slot = "0" [[inputs.smart]] devices = ["/dev/sda -d megaraid,1"] [inputs.smart.tags] disk_slot = "1" Use code with caution.
Most SATA drives behind a MegaRAID controller respond seamlessly to the -d megaraid,N flag. Reviewing this output map reveals that while /dev/sda
cat /proc/scsi/scsi
To fix this, you must use the -d megaraid,N flag to "pass through" the RAID controller and address a specific physical disk ID (N). 1. Identify the Correct Device ID (N) The number cat /proc/scsi/scsi To fix this, you must use
for d in 0 1 2 3; do smartctl -H -d megaraid,$d /dev/sda; done
This error occurs when smartctl cannot directly access a physical disk ( /dev/sda ) because the disk is behind a or MegaRAID controller. The OS sees a virtual drive, not the raw physical disk. The OS sees a virtual drive, not the raw physical disk
sudo storcli /c0 /eall /sall show
Here's an example:
You must specify the device type and the specific physical drive ID to the smartctl command. The Error: Understanding the Issue
