Toshiba, you can't have 14TB served on a platter. It'll take eight, at least
Big T lags in capacity stakes but could catch up soon
Toshiba has achieved 1TB/platter areal density with its MQ04 2.5-inch disk drive. That would imply 10TB+ 3.5-inch disk drives.
Unlike Seagate and WDC, Toshiba does not manufacture its own platters, buying them in from Showa-Denko instead. That company has recently revealed one detail of its 3.5-inch disk platter roadmap – a 1.5 to 1.8TB platter.
Showa-Denko platter/capacity table showing 1.5-1.8TB platter due in 2018
Toshiba's 10TB MG06 disk has seven platters and, effectively, a 1.43TB/platter areal density, which places it in the 1.3-1.5TB/platter area on the Showa-Denko table.
Assume a 1.8TB platter and a seven-platter drive would provide 12.6TB of capacity. That makes us fairly confident that Toshiba will introduce a 12TB air-filled disk drive next year.
We can go further. Toshiba has helium-filled disk drive technology on the way. That means it can introduce an extra platter into its 3.5-inch casing, meaning a 14.4TB capacity using Showa-Denko's components.
That would be without using WDC's host-managed SMR tech.
Unless WDC and Seagate get their in-house platter manufacturing to the same areal density level as Showa-Denko then Toshiba, a distant number three in 3.5-inch disk drive sales, could leapfrog them both in the capacity stakes – a quite unexpected possibility. ®