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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: 0) by Anonymous Coward on Saturday October 14 2017, @07:42PM (5 children)
"Microwave oven? Whaddya mean, it's a microwave oven? I've been watching Channel 4 on the thing for two weeks."
(Score: 0) by Anonymous Coward on Saturday October 14 2017, @08:01PM (4 children)
Will it heat up my soup without splattering it all over the inside of the microwave?
(Score: 2) by MichaelDavidCrawford on Saturday October 14 2017, @10:30PM
A long time ago I lost hope of ever using a clean microwave oven. Salmonella nearly killed me back in the day, but I survived. It no longer scares me.
Yes I Have No Bananas. [gofundme.com]
(Score: 3, Informative) by Aiwendil on Saturday October 14 2017, @10:46PM (2 children)
The splattering soup is an iq-test, if you fail to figure out to use an upside down plate (or suitable paper packaging) you get penalized with cleaning the microwave oven ;)
(Score: 2) by t-3 on Sunday October 15 2017, @02:58AM (1 child)
Upside down plate sucks! Soup or oatmeal or whatever always boils over. I bought a cheap plastic cover that does the same thing, but stands away from the top of the bowl and causes less unfortunate messes.
(Score: 2) by urza9814 on Tuesday October 17 2017, @02:36PM
For soup I always use the plate and never have an issue, but I suppose there may be some compatibility issues between your plates and bowls ;)
Oatmeal I don't generally cover though...if you check the box, some brands will specify microwaving on full power, but others will specify half power. Turns out if you use half power it doesn't boil over, but otherwise it seems to cook just the same.
(Score: 3, Funny) by Justin Case on Saturday October 14 2017, @08:00PM (6 children)
This is a non-starter for me. I could never back up 40TB to my stack of floppies.
(Score: 0) by Anonymous Coward on Saturday October 14 2017, @08:15PM
Get a tape drive. [newatlas.com]
(Score: 2) by SpockLogic on Saturday October 14 2017, @09:34PM (4 children)
Obligatory "40 TB is a hell of a porn collection".
Overreacting is one thing, sticking your head up your ass hoping the problem goes away is another - edIII
(Score: 2) by takyon on Saturday October 14 2017, @10:24PM (3 children)
No, it's just a drop in a sea of c*m [boingboing.net].
[SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
(Score: 2) by MichaelDavidCrawford on Saturday October 14 2017, @10:34PM (2 children)
It was an elaborate wrapper around wget.
Unfortunately wget doesn't have a way to create a checkpoint, exit then resume at the checkpoint. This resulted in me downloading a good chunk of training manuals[*] but never entire sites.
[*] My father was a Naval officer.
Yes I Have No Bananas. [gofundme.com]
(Score: 2) by Aiwendil on Saturday October 14 2017, @10:58PM (1 child)
-c ( or --continue ) skips files that are of equal or smaller size on server compared with local copy.
But yeah, no way to create checkpoints (but it can avoid re-downloading files).
(Score: 2) by MichaelDavidCrawford on Sunday October 15 2017, @01:16AM
Filter error: comment body not necessary
Yes I Have No Bananas. [gofundme.com]
(Score: 0) by Anonymous Coward on Saturday October 14 2017, @08:24PM (3 children)
How dependable is your storage device?
(Score: 2) by takyon on Saturday October 14 2017, @08:27PM
You'll have to trust WD on this for the moment:
https://images.anandtech.com/doci/11925/10_-_mamr-vs-hamr.png [anandtech.com]
https://images.anandtech.com/doci/11925/11_-_mamr_values.png [anandtech.com]
[SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
(Score: 5, Funny) by Justin Case on Saturday October 14 2017, @09:08PM (1 child)
I think there is a formula for that.
If a 1TB drive is bound to fail shortly after the end of the two year warranty, we can extrapolate that a 2TB drive fails at one year, and let's see... carry the 2... take the reciprocal of the exponent... a 40TB drive is guaranteed to fail before you can ever get it full!
(Score: 2) by maxwell demon on Sunday October 15 2017, @03:44PM
In that case, they should market it as unlimited storage. ;-)
The Tao of math: The numbers you can count are not the real numbers.
(Score: 2) by MichaelDavidCrawford on Saturday October 14 2017, @10:29PM (5 children)
A man can't walk down the street these days without tripping over two or more people fucking on camera.
Yes I Have No Bananas. [gofundme.com]
(Score: 1, Funny) by Anonymous Coward on Saturday October 14 2017, @10:52PM (4 children)
Can you post some tagged map locations?
I uh seem to be in an area devoid of such wildlife.
(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.
(Score: 2) by mendax on Sunday October 15 2017, @10:03PM (1 child)
Will spinning rust be in vogue by the time 2025 rolls around? Solid-state static RAMs are getting cheaper all the time, and more reliable. And they are one hell of a lot faster.
It's really quite a simple choice: Life, Death, or Los Angeles.
(Score: 2) by takyon on Monday October 16 2017, @07:23AM
​https://www.anandtech.com/show/11925/western-digital-stuns-storage-industry-with-mamr-breakthrough-for-nextgen-hdds [soylentnews.org]
[SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]