Seagate Announces a Trio of 8TB Drives for Enterprise Applications
 

Seagate was the first hard drive vendor to launch a cost-effective 8TB hard drive. The Archive HDD v2 (ST8000AS0002) uses Shingled Magnetic Recording (SMR) to drive up the areal density of the platters and the 8TB version used six 1.33TB platters. The only other 8TB drive currently in the market is the HGST Ultrastar He8, which uses helium filled sealed drives with seven platters.

http://www.anandtech.com/show/9577/s...e-applications