6.7 ${\hbox{Gb/in}}^{2}$ Recording Areal Density on Barium Ferrite Tape

Bidirectional recording performance of a perpendicular evaporated Co–CoO tape

“…On the other hand, the feasibility of high recording density tape storage was demonstrated using a barium ferrite particulate tape and GMR heads, in which its track-following test and error rate were investigated, as well as the signal-to-noise ratio. Then, the areal recording density of 6.7 Gb/in 2 was confirmed in a prototype linear tape system [2].…”

Development of advanced barium ferrite tape media

“…In other words, the particle volume of BaFe particles can be reduced without degradation of the coercivity. As a result, magnetic tapes using BaFe particles demonstrated an areal density of 6.7 Gb/in 2 in 2006, which corresponds to a cartridge capacity of 8 TB [14], 29.5 Gb/in 2 (35 TB) in 2010 [15], 85.9 Gb/in 2 (154 TB) in 2014 [16], and 123 Gb/in 2 (220 TB) in 2015 [17]. Nowadays, BaFe-particle cartridges with capacities up to 10 TB cartridges are available commercially; this capacity is four times larger than that of tape cartridges using the latest Fe-Co MPs, the maximum capacity of which is only 2.5 TB.…”

Metal Evaporated Media

“…2 ), which corresponds to an increase of more than 8 orders of magnitude in areal density (Toshiba, 2010). Magnetic tape recording has also improved steadily over the years (Argumedo et al, 2008;Berman et al, 2007;Cherubini et al, 2011;Dee, 2008) and the recent linear tape open generation 5 (LTO5) tape drives operate at about 1,200,000,000 bits/in. 2 (1.2 Gb/in.…”