Researchers: 'Bleak Future' Awaits Flash-based Solid State Drives
The average selling price of mechanical hard drives has risen ever since severe floods in Thailand wreaked havoc on HDD manufacturing plants, and on the opposite end of the storage spectrum, the cost of solid state drives (SSDs) has been steadily decreasing as the technology matures. With that being the case, why in the world would researchers from the University of California in San Diego (UCSD) declare the future of NAND flash memory and SSDs as being bleak?
It's a good question, and one that's answered by Steven Swanson (director of UCSD's Non-Volatile Systems Laboratory), Laura Grupp (a graduate student at UCSD), and John Davis (Researcher in Microsoft Research's Silicon Valley lab) in a paper (PDF) titled "The Bleak Future of NAND Flash Memory."
"In recent years, flash-based SSDs have grown enormously both in capacity and popularity," the paper begins. "In high-performance enterprise storage applications, accelerating adoption of SSDs is predicated on the ability of manufacturers to deliver performance that far exceeds disks, while closing the gap in cost per gigabyte. However, while flash density continues to improve, othe metrics such as reliability, endurance, and performance are all declining."
The researchers laid out data collected from 45 flash chips from 6 manufacturers, which they analyzed to predict the performance and cost characteristics of future SSDs. What they found is that the rapid increase in density -- which is necessary to continue improving upon storage space and costs -- has a negative impact for flash memory when it comes to performance, program/erase endurance, and energy efficiency.
So, when is the end of the world for SSDs set to take place?
"It's not going to be viable to go past 6.5nm... 2024 is the end," Grupp said at the 10th Usenix Conference on File and Storage Technologies, according to ComputerWorld.
Comments
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unitymind
February 21, 2012 at 12:06am
So they are running out of things to reverse engineer on the Area 51 spaceship crash? 2xSSD in raid 0 is all I need :) 6TB of off storage in mechanical is what I use. I don't see anything changing for years. 1gig read speeds FTW.
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devin3627
February 20, 2012 at 6:17pm
HEARD OF HYBRID! application data and os data, startup of program data should be on an ssd. movies can run from mechanical drives, "oh wait!" mechanical drives arent fast enough to run movies, NOT!. i tell you what, they need not to chose space when talking about SSDs. they are evolving too fast, they were NOT designed for storage but for speed damnit! i believe these both have their place in this world. remember tape drives? mechanical is slow as hell but thats where hybrids come into play.
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yammerpickle2
February 20, 2012 at 2:34pm
SSD are already getting into PCI-E bus as they are getting too fast for the SATA. I know they are too pricy now for many applications, but as the technology matures, prices will come down, speeds, and capacity will increase. I’ve a RAID 0 SSD array now, and retired my old WD raptor array to long term archive type storage. My next build will have a PCI-E solution. By 2024 they will have solved the problems or have something like 3D fabrication that will continue to make them viable. Don’t get me wrong I still have rotating media storage, but that is more of NAS now. I just can’t wait for OCZ Revo 4 X 2 performance to be brought down to desktop price points.
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axiomatic
February 20, 2012 at 2:32pm
Memristers are the next evolution in storage drives. Chillax, nothing to worry about.
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JohnP
February 20, 2012 at 1:02pm
This has been noted months ago right here in MPC. The NAND manufacturers have been warning about how NAND does not scale well and needs a lot more error correcting at lower die sizes. Paul, can you find that article?
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Paul_Lilly
February 20, 2012 at 2:08pm
I'm not sure of the specific article you're referring to, but could it be one of these?
Toshiba's New "SmartNAND" Offloads Error Correction Code from Host Processor
Micron's ClearNAND Technology Means Longer Lasting Flash Memory
Intel and Micron Plan to Shrink SSD Densities in Half
Related to the Intel/Micron article, Kevin Kilbuck, director of strategic marketing for Micron's NAND Product Group, told ComputerWorld almost a year ago that it's pretty easy for anyone to slap together a 50nm-based SSD, but few have the necessary IP to work with 20nm technology.
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BlazePC
February 20, 2012 at 11:15am
Pundits decried the viability of rotating, magnet medium multiple times between 1985 and 2000. One of the funniest predictions was how Bubble Memory was the future and HDD's would be dead in 5 years...
Needless to say, HDD's are thriving. With the advent of MR heads, perpendicular recording and other IPs, hard drives still kick ass - long past all the naysayers sure-fire predictions. Heat assisted recording seems to be the need big step.
So stories like this about SSD tech make me laugh.
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Peanut Fox
February 20, 2012 at 11:06am
Well if HDDs with lasers takes off who knows what that could lead to.
Still manufacturers could do all kinds of things with SSDs, like putting them behind an internal raid controller similar to what the OCZ colossus does, and package multiple drives within the same form factor like HDDs do with with drive platters. This could extend the viability of NAND flash. Who knows. New tech today is old tech tomorrow.
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bling581
February 20, 2012 at 10:46am
"It's not going to be viable to go past 6.5nm... 2024 is the end,"
Yeah.....I seriously doubt SSD will even be around that long. It's more than likely by that time the technology will already be obsolete and we'll be using something better.
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Perryn
February 20, 2012 at 10:11am
I feel like I've heard similar predictions over the past twenty years about CPU speeds, mechanical drive storage, optical storage, data speeds, capacity needs, and nearly every other metric in computing.
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biggiebob12345
February 20, 2012 at 1:48pm
Because the predictions can't take into account all the future advancements that will occur between now and the end of the universe.
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Mortal_M
February 20, 2012 at 11:51pm
You're right.
"640K software is all the memory anybody would ever need on a computer"( know he never said it but still...)
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Zoandar
February 20, 2012 at 9:43am
Let's hope that in another 12 years we will have developed something even cooler to replace current SSD technology, like maybe using those new 3D transistors being developed. Or maybe something as yet undiscovered. Just don't let a "consortium" get involved (yes USB, I mean you) to drag progress into the gutter for a decade.
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Hey.That_Dude
February 20, 2012 at 9:21am
6.5 nm ... Dude they aren't even gonna try that with CPU's. Why would they continue to invent processes for just flash NAND? That would make them more expensive PERIOD.
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Kromix
February 20, 2012 at 8:10am
12 yrs from now... how many years has HDD gone? my SSD is faster and quieter than 2 raptors in RAID-0. Windows 7 ultimate-64 takes aprox 10-15 seconds after POST to boot up.
plus old news is old... from 4 days ago -> http://www.computerworld.com/s/article/9224322/SSDs_have_a_bleak_future_researchers_say
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Hey.That_Dude
February 20, 2012 at 9:24am
Plus old news even before that website even published those words because the researchers knew about it before then!
Seriously, It takes time for information to disseminate to the masses. It's fine that someone got there first; I don't like it when you spoil an article because YOU found it first.
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