Techniques for generating a composite service level indicator (sli)

A computer program product comprising a non-transitory computer-readable storage medium storing a set of instructions, which, when executed by processing circuitry of a computing device, cause the computing device to:

• receive reliability data from a plurality of reporting devices remote from the computing device, the reliability data representing reliability of a plurality of subsystems of a technological system, each subsystem having at least one pre-set service level objective (SLO);
• for each of a plurality of time periods, determine a respective service level indicator (SLI) for each SLO;
• for each of the plurality of time periods, determine a composite SLI of the technological system by averaging the SLIs determined for that time period;
• determine a long-term composite SLI of the technological system by combining the composite SLIs of the technological system for all of the plurality of time periods;
• determine an impact of each subsystem on the long-term composite SLI of the technological system with reference to the SLIs of the SLO of that subsystem over each of the plurality of time periods in comparison to the composite SLIs of the technological system;
• determine which subsystem of the plurality of subsystems has a largest impact on the long-term composite SLI of the technological system;
• and
• take remedial action on the subsystem determined to have the largest impact on the long-term composite SLI of the technological system.

An apparatus comprising:

• network interface circuitry connected to a network, the network interface circuitry being configured to receive reliability data from a plurality of reporting devices remote from the apparatus over the network, the reliability data representing reliability of a plurality of subsystems of a technological system, each subsystem having at least one pre-set service level objective (SLO);
• and
• processing circuitry coupled to memory configured to:
• for each of a plurality of time periods, determine a respective service level indicator (SLI) for each SLO;
• for each of the plurality of time periods, determine a composite SLI of the technological system by averaging the SLIs determined for that time period;
• determine a long-term composite SLI of the technological system by combining the composite SLIs of the technological system for all of the plurality of time periods;
• determine an impact of each subsystem on the long-term composite SLI of the technological system with reference to the SLIs of the SLO of that subsystem over each of the plurality of time periods in comparison to the composite SLIs of the technological system;
• determine which subsystem of the plurality of subsystems has a largest impact on the long-term composite SLI of the technological system;
• and
• take remedial action on the subsystem determined to have the largest impact on the long-term composite SLI of the technological system.