MAGNETIC TAPE - ALIVE AND WELL

2. March 2010, 22:27 | by WD Milner | Full Article |

For those who thought magnetic tape was old-fashioned, obsolete or simply non-existent anymore, guess again! Magnetic tape, and its billion dollar market are alive and well, and doing better than ever.

Magnetic tape still has a thriving market because it offers higher density storage, lower cost, and greener footprint than other storage media. That density got a recent boost as IBM and Fujifilm have set a new world record in data density for magnetic tape — 29.6 gigabits per square inch.

This increase will see tape alive and well into the future as at this density a 10 centimetre x 10 centimetre x 2 centimetre cartridge will hold a whopping 35 terabytes of uncompressed data.

At about 1 cent per gigabyte, it is extremely cost effective. By comparison a modern Blu-Ray disc holds about 50 gigabytes at cost of about 30 cents per gigabyte. It would take 700 Blu-Ray discs to store the same 35 terabytes as the above referenced tape cartridge. Using hard disk drives would require 35 1 terabyte drives at a cost of approxiamtely 10 cents per gigabyte. A tape based library, especially for data infrequently accessed, typically would use about 200 times less power.

IBM is looking to further increase the areal density of its tape formula to 100 gigbits per square inch in anticipation of the mass storage need for recorded video from the increasingly common use of surveillance cameras.

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Categories: ,
Keywords: tape,magnetic tape,density,surveillance storage,data

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