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Western Digital is planning to use Microwave Assisted Magnetic Recording (MAMR) instead of Heat Assisted Magnetic Recording (HAMR) to produce hard drives with capacities of up to 40 terabytes by 2025:
WD has selected MAMR (Microwave Assisted Magnetic Recording) as its new HDD recording technology, which the company claims can enable up to 40TB HDDs by 2025. WD's rapid transition to MAMR is somewhat surprising, but the technology has been in development for nearly a decade. It certainly stands in contrast to Seagate's plans for using the laser-assisted HAMR (Heat Assisted Magnetic Recording) as the route to higher storage density.
The transition to the new recording process isn't immediate, but WD plans to have initial products shipping by 2019, and it had working demo models this week at its event in San Jose. The improved recording technology is needed to keep HDDs cost-competitive with the surging SSDs, but economics dictate that SSDs will never replace HDDs entirely, especially as the volume of data continues to grow exponentially; WD predicts that HDDs will account for ~90% of data center storage in 2020.
The technology announcement reportedly took the storage industry by surprise and MAMR doesn't have the same issues that have delayed HAMR:
WD pointed out that MAMR requires absolutely no external heating of the media that could lead to reliability issues. The temperature profiles of MAMR HDDs (both platters and drive temperature itself) are expected to be similar to those of the current generation HDDs. It was indicated that the MAMR drives would meet all current data center reliability requirements.
Based on the description of the operation of MAMR, it is a no-brainer that HAMR has no future in its current form. Almost all hard drive industry players have a lot more patents on HAMR compared to MAMR. It remains to be seen if the intellectual property created on the HAMR side is put to use elsewhere.
Will we have 100 TB by 2032?
Also at BBC, PetaPixel, and Engadget. WD Technology Brief.
Previously: AnandTech Interview With Seagate's CTO: New HDD Technologies Coming
Seagate HAMR Hard Drives Coming in a Year and a Half
Glass Substrate Could Enable Hard Drives With 12 Platters
(Score: 2) by MichaelDavidCrawford on Sunday October 15 2017, @01:15AM (3 children)
Stripping was once illegal here, but Oregon's constitution provides for more freedom of speech than the US constitution.
That eventually resulted in the city becoming the home of roughly fifty strip clubs.
At one time there were two heterosexual sex clubs, but one got in legal trouble because a fire code inspector gave them a better grade than it would had the fire inspector not getting sexual favors. Now there's just one.
There is also a gay bathhouse.
Yes I Have No Bananas. [gofundme.com]
(Score: 2) by maxwell demon on Sunday October 15 2017, @08:44AM (2 children)
Stripping is speech?
The Tao of math: The numbers you can count are not the real numbers.
(Score: 1, Funny) by Anonymous Coward on Sunday October 15 2017, @09:05AM
It speaks to me.
(Score: 2) by Bot on Sunday October 15 2017, @04:34PM
AFAIK stripping frees peach.
Account abandoned.