Method and apparatus for performing a real-time root-cause analysis by analyzing degrading telemetry signals
AssigneeSun Microsystems, Inc.
InventorsDavid K. McElfresh, Dan Vacar, Kenny C. Gross, Leoncio D. Lopez
Life of this patent
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Abstract
One embodiment of the present invention provides a system that performs a real-time root-cause-analysis for a degradation event associated with a component under test. During operation, the system monitors a telemetry signal collected from the component, and while doing so, attempts to detect an anomaly in the telemetry signal. If an anomaly is detected in the telemetry signal, the system performs a failure analysis on the telemetry signal in real-time while the telemetry signal is degrading. Next, the system identifies a failure mechanism for the component based on the failure analysis.
Claims15
A method for performing a real-time root-cause-analysis for a degradation event associated with a component under test, comprising:
- using at least one computer for:
- monitoring a telemetry signal, wherein detecting an anomaly in the telemetry signal involves applying a sequential probability ratio test (SPRT) to the telemetry signal and a time derivate of the telemetry signal and detecting an anomaly when the SPRT generates an alarm;
- collected from the component, and while doing so attempting to detect an anomaly in the telemetry signal;
- and
- when an anomaly is detected in the telemetry signal,
- performing a failure analysis on the telemetry signal by fitting the degrading telemetry signal to a time-dependent failure function in real-time while the telemetry signal is degrading;
- and
- attempting to identify a failure mechanism for the telemetry signal based on the failure analysis.
A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for performing a real-time root-cause-analysis for a degradation event associated with a component under test, the method comprising:
- monitoring a telemetry signal, wherein detecting an anomaly in the telemetry signal involves applying a sequential probability ratio test (SPRT) to the telemetry signal and a time derivate of the telemetry signal and detecting an anomaly when the SPRT generates an alarm;
- collected from the component, and while doing so attempting to detect an anomaly in the telemetry signal;
- and
- when an anomaly is detected in the telemetry signal,
- performing a failure analysis on the telemetry signal by fitting the degrading telemetry signal to a time-dependent failure function in real-time while the telemetry signal is degrading;
- and
- attempting to identify a failure mechanism for the telemetry signal based on the failure analysis.
An apparatus that performs a real-time root-cause-analysis for a degradation event associated with a component under test, comprising:
- a monitoring mechanism configured to monitor a telemetry signal, wherein when detecting an anomaly in the telemetry signal, the monitoring mechanism is configured to apply a sequential probability ratio test (SPRT) to the telemetry signal and a time derivative of the telemetry signal and detect an anomaly when the SPRT generates an alarm collected from the component, and while doing so attempting to detect an anomaly in the telemetry signal;
- a failure-analysis mechanism configured to perform a failure analysis on the telemetry signal by fitting the degrading telemetry signal to a time-dependent failure function-in real-time while the telemetry signal is degrading;
- and
- an identification mechanism configured to attempt to identify a failure mechanism for the telemetry signal based on the failure analysis.
Dependencies are inferred from the claim text.