In-situ computing system failure avoidance

摘要

A remaining time to replace can be updated taking into account time variation of a failure mechanism of a device. Starting with an initial remaining time to replace, an effective operating time can be determined periodically based on an operating parameter measured at a tracking interval, and remaining time to replace can be updated by subtracting the effective operating time. The technique can be applied to multiple failure mechanisms and to multiple devices and/or components each having multiple failure mechanisms.

主权项

1. A computing system device failure avoidance method for a computing system including at least one device, the method comprising:
identifying at least one failure mechanism of each device affected by time variation of an operating parameter of the device; assigning a respective time to replace for each failure mechanism; assigning a respective remaining time to replace initially equal to the respective time to replace for each failure mechanism, tracking the operating parameter periodically at a tracking interval; tracking a respective remaining time to replace for each failure mechanism periodically at the tracking interval, including,
determining an effective operating time of the respective device during each tracking interval based on at least one value of the operating parameter tracked during a respective tracking interval, andsubtracting the effective operating time from the respective remaining time to replace; and replacing a respective device responsive to one of the respective estimated time to replace reaching a respective threshold value.