The big difference from the beginning of June featured HGST Although UltraStar Archive HA10 is the use of common with most hard drives PMR instead SMR technology (Shingled Magnetic Recording), allowing deployment scenarios with a higher power requirement.
Western Digital promises the same for the Ultrastar HE10 several superlatives , In addition to the largest capacity in the hard disk sector, the new model will offer the lowest power consumption per terabyte of storage as well as the reliability of all hard drives on the market. In figures, this is compared with the largest air-filled hard drives with 8 TB 25 percent more storage capacity, lower by 56 percent lower power consumption per terabyte respectively a total of 44 percent lower power consumption and increased by 25 percent to 2.5 million hours MTBF, so Western Digital .
The high capacities are possible through the use of helium as a filling gas for the hard drives. Since it has a lower density than air, turbulence is substantially reduced in the interior of the housing. This not only increases the precision and reliability of the read / write heads while driving on the platter, allowing for higher data density. It can be installed than with air-filled hard drives in the same form factor (3.5-inch 26.1 mm height) and more platters and read / write heads. With still seven platters and one of 664 to 816 Gbit / in² increased data density is the 10-TB model of the provisional peak of development.