ssacli ctrl all show detail 명령어로 점검 중에

NOTE : predictive spare activation mode is enabled. physical drives that are in predicive failure state will not be available for use as data or spare drives.

Spare Activation Mode : Activate on physical drive predictive failure

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정확히 어떤의미인지 몰라서요... 

디스크가 곧 망가질거라는 의미인가요???