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By Ken Kajikawa,
OEM Technical Support Manager
FUJIFILM Recording Media U.S.A., Inc.
Did you know 96,000 petabytes (PB) of total compressed tape capacity shipped in 2016? To put that into perspective, that’s over 326,000 years of 24/7 Full HD video! But why do so many companies depend on tape if primary backup can be faster to disk or cheaper in the short-term to the cloud?
For starters, mid-size and enterprise companies produce reams of digital data that they must retain for long periods of time and tape provides more reliability than disk—at a significantly lower total cost of ownership. For most companies, data is their most prized possession, and LTO tape provides reliable, offline protection against on-line data corruption. For mid-sized to enterprise companies, by diversifying their storage practice, they can depend on their data from tape always being there when they need it.
Don’t listen to the hype from fancy providers; LTO tape is actually the most reliable solution available, with bit error rates that best those of disk. The bit error rate (BER) predicts the percentage of faulty bits per total number of written bits. Tape’s reliability is an impressive 100 times more reliable than Flash SSD, 1,000 times more reliable than Fibre Channel & SAS HDD, and an outstanding 10,000 more reliable than enterprise SATA disks (Source: Supplier Data, Horison, Inc.).
Our friends at LTO.org helped put this into perspective: for LTO-7 tape, that would be 1 error event in every 200,000 LTO-7 cartridges (1.25 exabytes) compared to 1 error event in every 20 enterprises 6 TB SATA disks (125 TB). Clearly, LTO Ultrium tape is designed to deliver outstanding reliability.
Additionally, an ESG audit found that the new Error Detection/Correction Code in LTO-7 Ultrium tape technology was so advanced that customers would be more likely to be struck by lightning or killed by a shark than hit an uncorrectable error when saving data to tape. Below are some fun probabilities:
- Getting hit by lightning; the odds are one in a million.
- Getting killed by a shark; the odds are one in 11.5 million.
- Winning a multi-million dollar lottery; the odds are 1 in 259 million.
- Getting an uncorrectable error using LTO-7 media; the odds are one in 10 quintillion
Not only is LTO tape reliable, but it is also durable enough to withstand the test of time. LTO Tape provides users with a shelf-life of over 30 years—unlike disk that has a shelf-life of 3-5 years. Additionally, advancements in technologies like Barium Ferrite ensure longer archival life with no loss of magnetic signal.
We all know data volumes are growing explosively while IT budgets are remaining stagnant; the most effective solution to this problem is a low-cost, highly reliable and high capacity tape storage system. There is no doubt some of your backup/achieved data will need to reside on disk, but with astounding reliability and its cost advantaged most of your backup/archive data should reside on tape.