Toshiba is developing 18TB MAMR hard disks

Toshiba logoToshiba will promote new hard disk drive technologies to enhance recording density and meet demand from mega data centers, with the company's 18TB Microwave-Assisted Magnetic Recording (MAMR) hard disk to part of the plan.

Toshiba, which released the world’s first 14TB nearline 3.5-inch and 26.1mm-height HDDs with 9-disk and helium-sealed technologies, briefly disclosed its HDD roadmap in a presentation during the company's FY2018 Technology Strategy Briefing that was held on November 22, 2018.

Toshiba is developing 18TB MAMR hard disks

MAMR technology boosts the recordidng capacity of a disk using microwave oscillators on magnetic heads. In MAMR, a magnetic write head contains a spin torque oscillator (STO) which generates microwaves. They lower the surface resistance of the underlying recording media and make writing bits easier. MAMR uses 20 - 40GHZ frequencies and the STO bombards a bit area with a circular AC microwave field, lowering its coercivity and enabling the bit value to be written. MAMR could lead to 4Tbit/in2 areal densities, beyond the 700 to 1,000Gbit/in2 used currently, and leading to 40TB drives.

In the past, Toshiba has also discussed the use of different layers of recording media that were “tuned” to respond to different MAMR microwave frequencies, allowing recording only on the layer tuned at a particular time. This gives a sort of 3D recording capability for HDDs, but the approach is still under development.

Seagate has chosen to follow a different patch through the Heat-Assisted Magnetic Recording (HAMR) technology. Proponents of the MAMR approach say HAMR stresses the disk surface and read/write heads rendering the disk unreliable in the long-term. Seagate disputes this and has demonstrated long life HAMR read/write heads.

Western Digital has also chosen MAMR for its future technology.

Source: CDRinfo

Tags: HDDs, Toshiba

Add comment

Your name:
Sign in with:
Your comment:

Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party

Last news

Galaxy Note10 really is built around a 6.7-inch display
You may still be able to download your content
Facebook, Messenger and Instagram are all going away
Minimize apps to a floating, always-on-top bubble
Japan Display has been providing LCDs for the iPhone XR, the only LCD model in Apple’s 2018 line-up
The 2001 operating system has reached its lowest share level
The entire TSMC 5nm design infrastructure is available now from TSMC
The smartphone uses a Snapdragon 660 processor running Android 9 Pie
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 / 2
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /

News Archive



Do you use microSD card with your phone?
or leave your own version in comments (15)