Comments on: Hard disk or solid-state? Think again
Although solid-state drives are in vogue, market forces and technical issues are making them a little less appealing than before.
Although solid-state drives are in vogue, market forces and technical issues are making them a little less appealing than before.
Web sites launch all the time, but they also shut their doors. We highlight 15 that bit the dust this year.
Let the debate begin: Was the iPhone more important than iTunes? Was anything bigger than Google finding a great business model? CNET offers its list of the 10 most important stories of the '00s.
Brooke Crothers has served as an editor at large at CNET News, an editor at Dow Jones' Asian Wall Street Journal Weekly, and a senior editor at InfoWorld. His CNET blog covers chip technology and computer systems, and how they define the computing experience. He also contributes to The New York Times' Bits and Technology sections. He is a member of the CNET Blog Network and is not an employee of CNET. Disclosure.
Add this feed to your online news reader
They will always be SLIGHLY more expensive than a regular mechanical hard drive, but the speed increases are WORTH IT!
People today are using quad-core systems with loads of ram and and gigabytes of harddrive space and all that cost less then what an original 120Mhz Pentium system with 4mb of ram and a 1gig harddrive cost back in '95.
Umm... no. It is 'when' as well with a HDD, I have never had one of those suckers last more than 5 years. Granted, I do some fairly disk intensive stuff (audio, mostly), but the question is most definitely not 'if' a HDD will fail. Regardless of what you are using for storage, backup, backup, backup...
Another point I think he was making was that you can yank a HD and let it set on the shelf for a few years and when you hook it back up it will more than likely work just fine. Again, with a SSD that is not nearly as likely.
With a hard drive, the magnetic domains are permanent until they are changed by a sufficiently strong magnetic field. The motor or other components may break, but the data will still be safe on the platters.
This is especially prevalent in the example given: a computer that has not been turned on in years. Most HDDs will work just as well if stored properly. A SSD has been losing charge over time and can be guaranteed not to have any readable data (even forensically) after a certain time.
The comment is just asking to be proven wrong. Anyone using a PC older then two years can attest to that. The older and working harddrives for sale on e-bay can also act as proof. I agree, harddrives are mechanical devices and like all machanical devices they will eventually wear out, but storage technology wouldn't have progressed to where it is today if harddrives were really as unreliable as you imply it is.
On SSD, a lot will hinge on whether it is SLC or MLC. Data retention on SLC is pretty good up to fifteen years. Early MLC (2 bit) was ten years. Current (4 bit) MLC is five. Five years is pretty short for retention time if you ask me.
SSD last far shorter than any good HDD
SSD's have a set number of read/write cycles before they die
The motor on an HDD also has a practical lifetime as well. Google did a study a while back and found that 12% of HDDs in their test died in the first year.
Given enough time though I think that SSDs will end up taking over the netbook space much like they have taken over the MP3 player market (save for the iPod classic the HDD based MP3 player is nearly defunct). Due to the small size of the screens storage for high def video, high end games, 3d modeling, video editing, etc. are non-issues since one will never likely do any of those tasks on such a machine. Once 128GB SSDs drop below $100, which may be as little as a year away, I think that we will start to see a revived interest in SSDs on netbooks.
SSD's are a whole 'nother ball of wax together and those critters require a different set of tacticsentirely. The drives I've sent out for recovery come back with estimates of $15-20K. That's just a whole lot of money for a laptop that only cost $1200 to start with.
I never heard anything more asinine as the customer I had who was willing to spend $5k to recover data but originally wouldn't spend ~$100 for a backup harddrive. In my opinion, if it wasn't important enough to backup then it's not important enough to recover.
You have two choices in automobiles. 1) Normal average 2009 model. Cost $30,000. 2) New vehicle. Cost $100,000. Same size as option 1. Option 2 never gets stuck in traffic, gets 10 times the gas mileage, has it's own lanes on all highways which allow top speeds of 200 mph, but will only last you 5 years before you have to replace it.
The benefits are clear for option 2. If I could afford it, I'd buy option 2. If I couldn't afford it, I'd sit around pointing out how it costs too much and how it will only last for 5 years.
SSDs are amazing. It's like night and day compared to a hard drive. Ask anyone that has one produced in the last year or two. They're pricey. It's doubtful the price will come down to HD price anytime soon. They won't last as long as a HD in theory (I say that because I've had my share of HDs go bad before the expected lifespan on an SSD). But MAN are they nice. Every day, day in and day out, I'm pleased with how fast my system responds with the SSD. Programs load faster, the system boots faster, patches install faster (yes, the writes are faster for me), everything just runs faster.
Sit on the sidelines all you want and talk about the problems they exhibit after years of stellar performance. I'll be running laps around you with my SSD. :)
Hell if a SSD even lasted that long alot of people wouldn't have a problem but the lifespan of them is like 2-3
None of the "flaws" mentioned in this piece are news at all.... the limitations of SSD are very well known.
The reason notebook manufacturers are moving away (for now) from SSD is simply cost... and cost is going to fluctuate as the cost of NAND chips moves. Anyone who has been watching the industry for any length of time ought to know this.
SSD is going to be the subject of massive R&D investment over the next decade, and there are some pretty obvious reasons why traditional HDD's aren't going to take us much further - A traditional HDD is essentially a rack of spinning aluminium disks coated in rust... There comes a point when the laws of physics intervene to prevent you from getting more bits onto a square centimetre of that rust (to whit - the little pointy things are simply so close together that they begin to interfere with eachother).
Players like IBM (the people who invented the Winchester Drive (in Winchester - England) are burning the midnight oil to figure out how to address the challenge that storage represents.
SSD - even current gen SSD has a huge future - not necesarily as long-term storage - But as super-fast front-end storage for things like databases (which are typically written to few times but read from many) - Thing of SSD as a way to speed up your server (dramatically) by providing a very fast second tier of persistent cache - With long term storage done on those painfully slow spinning disks of rust, and the super-fast access on SSD.
This article would have been much much better if it had included an interview with someone other than the guy from Numonyx... I would be happy to point the author of this piece to a couple of really hard-core experts on storage if he'd like?
So SSDs are not perfect yet but give it time. Perhaps a SSD with a batery backup system or a small solar pannel who knows what they will think of but we should all be excited about what speed the future holds & look forward to an instant loading OS.
- by tundraboy July 21, 2009 10:46 AM PDT
- My disenchantment with flash memory goes back to the day my daughter lost 15 excellent close up shops of a bald eagle that she took on a field trip. One second they were there in the SD card, the next, they were gone. And it's not so much that the SD card degrades, it's that there's no way you can predict when it would happen.
- Like this Reply to this comment
-
(35 Comments)