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Print 22 comment(s) - last by johnnyMon.. on Mar 27 at 9:02 PM

Samsung doubles the capacity of its SSD

The battle in the solid state disk (SSD) arena continues to get fiercer as Samsung has announced a new 1.8" 64GB SSD to accompany the existing 32GB unit. The new drive offers read and write performance that has been increased 20 percent and 60 percent respectively over the latter offering.

Samsung's new 64GB SSD takes advantage of SLC flash and offers read speeds of 65MB/s and write speeds of 45MB/sec. The older 32GB SSD drive introduced last year puts up numbers of 53MB/sec and 30MB/sec respectively.

For comparison, SanDisk lists the read speeds of its newly announced 2.5" 32GB SSD drive at 67MB/sec -- write speeds were not given. Adtron’s latest SSDs trump both offerings, however, with read speeds of 65-70MB/sec and write speeds of 65-55MB/sec.

Samsung expects that the market for SSDs will jump dramatically over the next four years. The company is forecasting that shipments will jump from 2.2 million units in 2006 to 9 million in 2010. Likewise, sales are expected to rise from $56 million USD in 2006 to over $6.8 billion USD in 2010.



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What about the issue of flash memory wearing out?
By johnnyMon on 3/27/2007 2:43:39 PM , Rating: 2
Don't they degrade over time? Have they solved this? Hard drives see such regular access, especially in the FAT and programs and files that are used frequently. Will flash-based drives not last as long as current hard drives? Thanks for cluing me in on this aspect. :)




By CascadingDarkness on 3/27/2007 3:19:14 PM , Rating: 3
Yes http://www.dailytech.com/article.aspx?newsid=4962

My question would be specific to my company. Our remote laptops have a utility that zeros out the page file several times before shutting down (to make hacking more difficult if they were stolen).

Depending how many bit writes this does sure it decrease life of drive. Will it be anything significant considering they say 150 years, I doubt it.


By Oregonian2 on 3/27/2007 3:19:23 PM , Rating: 2
Flash drivers have the FAT (as you mentioned) move around the flash array to spread where the writes occur physically even to the same logical location -- where on a hard disk they'd be writing the same physical place over and over.


By Dactyl on 3/27/2007 5:00:27 PM , Rating: 2
Do they degrade over time? YES.

Have they solved this? YES, they've solved it well enough.

What matters is not just whether they degrade, but how much they degrade. With 100,000 writes possible on some NAND flash, and flash controllers that keep track of how many times an area has been accessed to spread the access evenly. Further, there can be error correction when an area does fail (and the controller remembers which areas have failed!). So flash can be extremely reliable for a very long time, better than a HDD, and plenty good enough for our use.


By johnnyMon on 3/27/2007 9:02:27 PM , Rating: 2
Great - thanks everyone.

It bugs me a little that I would know my drive is slowly wearing out, portions becoming unusable, but that may be already happening with my current drives anyway.

If I knew that they'd be as reliable as a platter drive, that 10 years after I stopped using it I could pull it from storage and the data would be there, I'd be happy to use them. Hard drive storage is the best long-term backup solution I've found in my (non-professional) computer use.


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