Seagate announced that it has shipped the largest-capacity 44TB mechanical hard drive in history, with the first batch supplied to two large cloud service providers (CSPs). The hard drive is based on Seagate's latest Mozaic 4+ platform, uses the latest HAMR heat-assisted magnetic recording technology, and is CMR traditional magnetic recording., not the despised SMR shingled magnetic recording.

Thanks to higher storage density,Its single-disc capacity reaches a record-breaking 4.4TB, using only 10 discs to achieve a total capacity of 44TB.
The rotation speed is a standard 7200RPM, and the sustained data transfer rate is approximately 300MB/s.
For example, Seagate said that in EB-level deployment, 44TB has improved infrastructure efficiency by about 47% compared to the currently widely used 30TB, the data center floor area has been reduced by about 9 square meters, and annual power consumption has been reduced by about 800,000 kWh.
Seagate did not mention which series the hard drive belongs to, but it is no surprise that it is the Exos Galaxy series.

It is worth mentioning thatWestern Digital will ship 40TB hard drives in the second half of the year, based on its EAMR energy-assisted magnetic recording technology.
Seagate is obviously eager to prove that HAMR is more advanced than EAMR!

Volume-production HAMR solution with vertically integrated photonics technology

Core technology components of Seagate Mozaic platform based on HAMR

Mozaic 4+'s economies of scale and performance improvements
