A 700TB Backup drive?

OK it is a little out there.  By storing data in DNA Harvard Scientists George Church and Sri Kosuri have stored 700TB in 1 gram of material (70 Billion copies of a book).  Which makes us wonder how long it will be before there is a High-Rely DNA backup drive.  The medium is very dense,…

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Why RAID-5 Stops Working in 2009 – Not Necessarily

Suppose you were to run a burn in test on a brand new Seagate 3TB SATA drive, writing 3TB and then reading it back to confirm the data. Our standards are such that if a drive fails during 5 cycles we won’t ship it. Luckily, all 20 of 20 drives we tested last night passed. In fact, most of the 3TB drives we test every week passed this test. Why is that a big deal? Because there is a calculation floating around out there that shows when reading a full 3TB drive there is a 21.3% chance of getting an unrecoverable read error. Clearly the commonly used probability equation isn’t modeling reality. To me this raises red flags on previous work discussing the viability of both stand alone SATA drives and large RAID arrays.

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