Seagate’s Mozaic 3 Plus technology allows for bigger hard drive capacities by making data bits smaller and closer together on each disk. To write data, a laser diode attached to the drive’s recording heads heats small areas of the disk. “Each bit is heated and cools down in a nanosecond, so the HAMR laser has no impact at all on drive temperature, or on the temperature, stability, or reliability of the media overall,” Seagate writes on its website.
Seagate says its Exos M hard drive has a 3TB per platter density, making it useful for enterprise applications like powering AI systems. We still don’t know when Seagate could release its Exos M hard drive, as its product page currently shows a link to “Stay Informed,” but a launch seems imminent.
As pointed out by Tom’s Guide, Seagate said in a filing earlier this month that it had “successfully completed qualification testing” for its HAMR hard drives with “several customers within the Mass Capacity markets, including a leading cloud service provider.” It says it will start shipping its HAMR-based hard drive to the unnamed cloud provider in the “coming weeks.”
The Verge reached out to Seagate with a request for more information but didn’t immediately hear back.
