Install ledmon by entering the following commands in the terminal:
sudo apt update sudo apt install ledmon
Description:
Enclosure LED Utilities
ledmon and ledctl are userspace tools designed to control storage enclosure LEDs. The user must have root privileges to use these tools. . These tools use the SGPIO and SES-2 protocols to monitor and control LEDs. They been verified to work with Intel(R) storage controllers (i.e. the Intel(R) AHCI controller) and have not been tested with storage controllers of other vendors (especially SAS/SCSI controllers). . For backplane enclosures attached to ISCI controllers, support is limited to Intel(R) Intelligent Backplanes.
Homepage: http://ledmon.sourceforge.net/
Version: 0.79-2build1
Section: universe/admin