As a PRTG administrator managing dynamic IT/OT infrastructure, I want PRTG sensors to automatically adapt to device configuration changes (such as volume label modifications or disk capacity expansions) by using persistent hardware identifiers, so that I can maintain continuous monitoring without sensor failures, avoid losing historical data, and reduce manual maintenance overhead when routine infrastructure changes occur.

When certain device-side properties change — such as a drive’s volume label or storage size — PRTG sensors (e.g., Disk Free Sensor) often fail, even though the hardware itself remains the same. For example: If the volume label of a hard drive changes, the sensor enters an error state and cannot be repaired. If the disk capacity is increased (e.g., resizing or expanding a virtual disk), the sensor fails even though the drive’s serial number remains unchanged.

Currently, the only workaround is to delete and recreate the sensor, which results in loss of historical data and unnecessary maintenance overhead. I propose adding a feature that enables automatic sensor re-binding based on unique device identifiers (such as the disk serial number or hardware ID). This would allow PRTG to recognize that it’s still the same device, update the changed attributes dynamically, and continue monitoring without interruption.