Patent Document ID: 10157105
Application ID: 15221809
Patent Flag: 1

Claim One:
1. A method for data protection in a cloud-based service system, comprising the steps of: A. collecting historical operating data of storage devices in the cloud-based service system; B. building up a life expectancy model and a next-7-days failure probability model with the collected historical operating data using a machine learning algorithm; C. inputting operating data in the past 24-hours into the life expectancy model and the next-7-days failure probability model for every storage device to predict ranges of expected lifespans in respective groups and corresponding failure probabilities; and D. backing up data in the storage devices according to the predicted ranges of expected lifespans in respective groups and corresponding failure probabilities obtained in step C, wherein the next-7-days failure probability model is built by the steps of: a) sorting the collected historical operating data corresponding to the next-7-days failure probability model; b) obtaining operating data of storage devices during 7 days from the last time point of collection for failed storage devices, and a plurality of randomly chosen good storage devices, wherein the obtained operating data corresponds to the next-7-days failure probability model; c) normalizing the obtained operating data from each storage device; and d) building the next-7-days failure probability model with the normalized operating data using the machine learning algorithm.