TapTechNews May 15th message, Toshiba recently announced that it has successfully demonstrated a 32TB HAMR mechanical hard drive and a 31TB MAMR mechanical hard drive.
TapTechNews note:
HAMR stands for Heat Assisted Magnetic Recording, which uses near-field optical heating to enhance magnetic recording capacity;
while MAMR stands for Microwave Assisted Magnetic Recording, which uses microwaves to enhance the magnetic recording capacity of mechanical hard drives.
Toshiba's 32TB HAMR mechanical hard drive adopts a 10-disc design and uses SMR shingled magnetic recording technology, making its storage density essentially the same as Seagate's MagiColor 3+ HAMR platform, which also has a 32TB capacity in its 10-disc SMR version.
Toshiba expects to start sampling its HAMR mechanical hard drive from 2025. The foreign media Blocks&Files reported that the capacity of these sampling products will be 28~30TB, not reaching 32TB, so they may be traditional CMR magnetic recording versions.
Toshiba confirmed that its 31TB MAMR mechanical hard drive is the first in the industry to achieve an 11-disc design, coupled with SMR and improved signal processing technology, pushing the storage density of this mechanical hard drive to 2.8TB per disc.
In the press release, Toshiba praised the long-standing close cooperation with disc manufacturer Resonac (formerly SDK of Showa Denko) and magnetic head manufacturer TDK.