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from the spinning-rust-still-has-its-place dept.
The cloud storage company BACKBLAZE has published another in their series of quarterly articles looking into Disk Drive failure rates.
The company had 68,813 spinning hard drives in operation. For Q3 2016 they have 67,642 drives, which is 1,171 fewer than their last quarterly report. The decline is because they have been migrating from their 2 terabyte (TB) drives to 8 TB models. They currently run a mix of 2, 3, 4, 5, 6 and 8 TB drives in their cloud storage system from a mix of different vendors.
The 8 TB drives are too new to reflect anything other than infant mortality rates, but all of the other sizes have been heavily used for years, such that some brand-specific trends are starting to appear.
The results are summarized in a table with the key metric being Annualized Failure Rate which is computed as follows: ((Failures)/(Drive Days/365)) * 100.
The Seagate 8 TB drives are doing very well. Their annualized failure rate compares favorably to the HGST 2 TB hard drives. With the average age of the HGST drives being 66 months, their failure rate was likely to rise, simply because of normal wear and tear. The average age of the Seagate 8 TB hard drives is just 3 months, but their 1.6% failure rate during the first few months bodes well for a continued low failure rate going forward.
Still, when you look at all the brands and models involved, the HGST brand seem to show the lowest failure rates historically.
With some reporting failure rates over 10% annually, mirrored drives may still be a wise choice for not trusting in the cloud.
(Score: 0) by Anonymous Coward on Saturday November 19 2016, @03:56AM
You friendly neighborhood word Nazi here.
"your main tenant" > This really confused me for a few seconds, and had me wondering what do people living at GP's house have to do with this, maybe they're using his servers?
You probably meant "tenet [dictionary.com]".
The word tenet , defined here, should not be hard to pronounce. For speakers of American English, say the number ten, then add the pronoun it , and you have tenet , pronounced (ten ʹ it). Unfortunately, there is a similar-looking and similar-sounding word in English that is much more common—the word tenant , meaning someone who rents and occupies an apartment, office, etc. This word is pronounced (ten ʹ ənt), and its pronunciation is frequently used in error by people who intend to say tenet . Because both words involve sequences of the same letters t and n —both of which are pronounced with the tongue in the same place, touching the upper palate—it is easy for the extra n of the more common word tenant to creep into the pronunciation of tenet . With care, one can learn to pronounce these two words differently and appropriately.
Back on-topic, there may be some to what GP says about different use-cases, but the results could swing either way. I'd also say that the very smooth and clearly delineated slopes of the graphs suggest that data is very representative :)
In my particular use-case, a desktop tower with several HDDs, ~95% full on average (whenever I run a new simulation, I have to find some old data that I don't need to analyze anymore so it can be discarded...), this data can be very helpful. Thanks to BackBlaze for publishing it and the submitter and editors for pushing it to SN! It's been a while since I last bought an HDD, so I forgot about this invaluable information :)