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Toshiba launches the first 18 TB HDD with MAMR recording technology

Feb 22.2021Hardware written by Iulian Dinita
MG09 is the first disk to benefit from a microwave-assisted magnetic recording system to overcome the 16 TB barrier.

Toshiba has just taken a new step in the field of hard disk recording. Its new 3.5-inch MG09 is the first to use FC-MAMR (Flux Control - Microwave Assisted Magnetic Recording) technology to provide 18 TB of capacity.

The Toshiba MG09 has 9 2 TB trays with a density of 1.5 TB per square inch. It has a 7200 rpm engine to deliver speeds of up to 281 MB / s. The housing is filled with helium, as this gas generates less friction than air.

MAMR technology allows for increased capacity as traditional perpendicular registration (PMR) has reached its limits. To exceed the maximum limit of 16 GB, manufacturers first relied on SMR (Shingled Magnetic Recording) technology, but this technology is suitable for archiving, but disastrous for intensive and regular use.

Toshiba launches the first 18 TB HDD with MAMR recording technology - screenshot 01

The future of high-capacity storage involves two technologies called MAMR (Microwave Assisted Magnetic Recording) and HAMR (Heat Assisted Magnetic Recording). HAMR technology consists of heating the magnetic surface with a small laser beam before recording the data. Seagate currently offers 18TB and 20TB HAMR models.

MAMR technology uses a microwave transmitter in the write head (rotational torque oscillator) to generate waves in the frequency range of 20 GHz to 40 GHz. MAMR heads are less expensive and easier to manufacture than HAMR heads, which require a laser.

The manufacturer Western Digital prefers to use another technology, called ePMR (Energy-Assisted Perpendicular Magnetic Recording), on its 18 TB UltraStar HC550 disk. This technology generates an additional magnetic field throughout the writing operation.

Designed for companies, the 18 TB MG09 is available in versions with SAS or SATA interface. Toshiba also offers a 16 TB model. Deliveries of the first copies are scheduled for the end of March, and prices are not yet known.

Source: Toshiba Unveils New 18TB MG09 Series Hard Disk Drives
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