HDDs designed for industry have a lifespan of longer than 5 years in typical data centers. In fact, recently there have been many teams across industry expanding the lifetime of HDDs past 5 years well into 6 and 7. You can also check out Backblaze's drive stats to see how many drives are actually going past this time span: https://www.backblaze.com/blog/backblaze-drive-stats-for-q1-...