| Title | Toshiba Will Adopt Western Digital's Microwave-Assisted Magnetic Recording Approach for Hard Drives | |
| Date | Monday December 10 2018, @09:54PM | |
| Author | martyb | |
| Topic | ||
| from the MAMR-mia! dept. | ||
Toshiba plans to boost its hard drive capacities by using Microwave-Assisted Magnetic Recording rather than Heat-Assisted Magnetic Recording. The company could use the technology to produce an ~18 terabyte hard drive:
Toshiba, like Western Digital, is going to use Microwave-Assisted Magnetic Recording (MAMR) to escape the inability of current PMR tech to go beyond 15-16TB disk drive capacity. [...] Seagate has chosen to [increase capacities] using heat (Heat-Assisted Magnetic Recording or HAMR). 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 chosen MAMR for its future technology and now we know Toshiba is doing the same.
[...] MAMR uses 20 - 40GHZ frequencies and the [Spin Torque Oscillator (STO)] bombards a bit area with a circular AC microwave field, lowering its coercivity and enabling the bit value to be written (magnetic polarity changed as desired.)
It is reckoned that MAMR could lead to 4Tbit/in2 areal densities, beyond the 700 to 1,000Gbit/in2 used currently, and leading to 40TB drives.
Related: Western Digital to Use Microwave Assisted Magnetic Recording to Produce 40 TB HDDs by 2025
Seagate to Stay the Course With HAMR HDDs, Plans 20 TB by 2020, ~50 TB Before 2025
Seagate Plans 36 TB HAMR HDDs by 2022, 48 TB by 2024
Seagate Starts to Test 16 TB HAMR (Heat-Assisted Magnetic Recording) Hard Drives
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printed from SoylentNews, Toshiba Will Adopt Western Digital's Microwave-Assisted Magnetic Recording Approach for Hard Drives on 2023-06-06 08:39:16