Backblaze On Hard Disk Reliability — DSHR’s Blog

It has been a long time since I blogged about the invaludable hard drive reliability data that Backblaze has been publishing quarterly since 2015, so I checked their blog and found ndy Klein’s Star Wars themed Backblaze Drive Stats for Q1 2022, as well as his fascinating How Long Do Disk Drives Last?. Below the…

Backblaze On Hard Disk Reliability — DSHR’s Blog

I do enjoy reading most of Dave Rosenthal’s blog entries (some are about Silicon Valley entrepreneurship). But occasionally Dave has an outright, practically useful entry on some every day technology. Like hard drives for instance. So today, he’s got the published findings from Cloud back-up soln. provider Backblaze indicating their failure rate on a range of hard drive makes/models. One conclusion I’m keenly aware of is failure rate of HDDs generally (lasting up to 6 yrs. and 9months as a median value). So taking that as the margin of safety, I may now start looking for replacement units to cycle into the mix on that interval, or “slightly” shorter (say 6 yrs and 6 months). Seagate 6TB seems to be the winner overall, and if I try to use it more as a less used, warm storage, maybe that’s good enough. In my case Warm storage might be something I occasionally touch to archive stuff. But I’m not using it for hourly/daily backups (to me that’s hot storage).

Thoughts? Questions? Feel free to respond…

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