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Self‑tests can also be run on physical disks using the same -d megaraid,N syntax. This public link is valid for 7 days
| Attribute | ID | Raw Value Meaning | Action Threshold | | :--- | :--- | :--- | :--- | | | 5 | Number of sectors remapped to spare area | > 0 – Monitor closely; rising count indicates media degradation | | Current_Pending_Sector | 197 | Sectors that are unstable but not yet remapped | > 0 – Immediate attention required; often precedes drive failure | | Offline_Uncorrectable | 198 | Sectors that could not be corrected during offline testing | > 0 – More serious than pending sectors; consider replacement | | UDMA_CRC_Error_Count | 199 | Interface communication errors (cable, backplane, or power issues) | Repeated increase – Likely a cabling/connection problem, not the disk itself | Can’t copy the link right now
for d in 0 1 2 3; do smartctl -H -d megaraid,$d /dev/sda; done | Attribute | ID | Raw Value Meaning
Because these IDs do not always start sequentially at 0 (they often start at 32 , =0 , or vary based on enclosure cabling), you must first find the valid IDs. Run the built-in scan utility: smartctl megaraid,N ( how to find the right value for N ? )
/dev/sda -d scsi # /dev/sda, SCSI device /dev/bus/0 -d megaraid,0 # /dev/bus/0 [megaraid_disk_00], SCSI device /dev/bus/0 -d megaraid,1 # /dev/bus/0 [megaraid_disk_01], SCSI device /dev/bus/0 -d megaraid,2 # /dev/bus/0 [megaraid_disk_02], SCSI device Use code with caution.
To pull comprehensive health profiles for a hard drive or enterprise SSD located at index 0: Error with smartctl on Dell/Megaraid · Issue #660 - GitHub