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In this paper, we estimate the life cycle from acceleration life test about the hard disk of disk array of image storage of PACS. Webuil distribution was selected by the Anderson-Darling goodness-of-fit test with data of down time at 50  ̊C and 60  ̊C. The equality test of shape parameter and scale parameter was conducted, so that the probability distribution estimated from data of down time at 50  ̊C and 60  ̊C was not statistically significant. The shape parameter was 1.0409, The characteristic life was 24603.5 hours at normal user condition(30 °C) by the analysis of weibull-arrhenius modeling which included the acceleration factor of temperature, and The activation energy was 0.5011 eV through arrhenius modeling. The failure analysis of the failure samples of acceleration test and the samples of market return was conducted, so that the share percentage of failure mode was detail difference but the rank of share percentage was almost same. This study suggest the test procedure of acceleration test of hard disk drive in PACS using environment, and help the life estimation at manufacture and use

The Acclerated Life Test of Hard Disk In The Environment of PACS