Western Digital's "Green" Hard Drives 187
MojoKid writes "Eco-friendly or 'green' products are becoming much more fashionable these
days, especially in things like high-end electronics, where the impact on the
environment and the disposal of these products is being regulated now by such
things as the RoHS compliance standard. In addition, power consumption is also
being looked at more closely for all the obvious reasons. Hard Drive
manufacturer Western Digital recently took the initiative by being the first
drive manufacture to produce and market
a lower power version of their Caviar line of hard drives. The
numbers here show that a green hard drive will probably only save an average
end user about 10 watts in total system power consumption. However, from a
data center perspective, where demand for storage is growing by the petabyte at
an alarming rate, 10 watts per drive can certainly add up quickly."
SSD power consumption ? (Score:2, Interesting)
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OH, if you're looking for an ANSWER, that would be that an SSD takes on average 50% of the power, but perhaps 1/3 to 1/5 of the capacity of a similar form-factor hard drive. Meaning that per-drive they use less and per gig they use more.
Even older technologies are eating less power... (Score:3, Informative)
Such a bulb would have the same efficiency as a compact flourescent light, but with the "instant on" advantages of incandescents and no poisonous mercury to clean up if the bulb accidently breaks.
Re:Even older technologies are eating less power.. (Score:3, Insightful)
Typically thinner filaments are more efficient but more fragile. If they developed a filament material that is less fragile and thinner it would be a serious breakthrough.
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Re:Even older technologies are eating less power.. (Score:2)
Who decided the standard amount of light output by a certain wattage? Cuz whoever it was was apparently wrong.
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Right now it's not that impressive, because the storage density is lagging behind. This may change.
They're also very quiet (Score:5, Informative)
http://www.silentpcreview.com/article804-page2.html [silentpcreview.com]
Idle and seek noise are extremely low, and vibrations almost negligible (this is also a very important thing when you have two same drives, for example in a redundant RAID array *cough*).
The power savings aren't 10W, though.
Re:They're also very quiet (Score:5, Interesting)
It was so quiet we took it to an empty office because we couldn't believe what we were hearing, and that's when we found the ticking of my watch is far louder than the noise this computer makes when booting. Awesome drives, and an awesome case. Would highly recommend them both.
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Spec list (with prices from dabs.com and scan.co.uk):
Antec P182 Tower Case: £67.04
Corsair 520HX PSU: £48.16
Gigabyte GA-MA69G-S3H Motherboard: £37.63
AMD Sempron 64 LE-1100, 1.9Ghz: £20.41
2x Kingston 1GB DDR2: £13 each
6x Western Digital Caviar 1TB WD10EACS: £144.94 each
LG Black SATA DVD+/-RW: £15.99
Supermicro 8
Re:They're also very quiet (Score:4, Informative)
I put one of the WD GP drives in my TiVo HD. In the default settings, it was still to loud for my entertainment center. I took it out so I could run the Feature Tool from Hitachi to change the acoustic levels. After that it seemed my quieter and haven't seen any effect on performance in the TiVo.
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Redundant RAID? Redundant.
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I have the 1TB GP model and I have a hard time believing that it uses significantly less power than my 250GB Hitachi drive. It consistently runs hotter than the Hitachi. I thought maybe the sensor was wrong but it feels hotter to the touch too. As of right now my Hitachi is at 42 C, WD is at 44 C. It has hit 50 C before, while the Hitachi peaks around 46 C.
I had a drive that insisted it was 5C below ambient temperature, and another one that claimed 49C just after turning the computer on. :)
That said, your Hitachi probably has one or two platters, while the big drive has three. It's normal that drives with more platters have a higher operating temperature. You still might need to work on improving ventilation inside your case, judging by those temps - HDD cages are notorious for blocking airflow, the air intake on most cases is usually highly restrictive (eve
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Maybe you could get a 2x5.25", uhm, thingie with a fan. Scythe has one, it's called "Kama Bay".
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Ads up (Score:5, Insightful)
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You get a HD with 10W less power need, a northbridge with 5W less power need, a CPU with 5W less power need, a video card with 15W less power need, a soundcard with 5W less power need, you've saved 40W already with minimal change in performance.
I gotta agree whole-heartedly here. For most people, really high super performance numbers are not that big of an issue. Few of us non-Vista people will every stress the max transfer numbers to really notice the small overall drop. For a brand new system, this would seem like a Good Thing (tm) to add to the shopping list. I am just trying to ponder what *I* would need 1 Tb of disk space for, when my 40Gb drive is barely used.
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I was tearing up my 350 GB drive a year ago just with digital pictures. My wife and I have a 6 megapixel camera and we regularly take pictures of the kids to share with the grandparents and relatives who are all a thousand miles away. We have about 20 Mini-DV's worth of video (10GB apiece) of random stuff which I **don't** have uploaded to the computer. Buying a new hard drive and backing that media u
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When I add all my digital photos, and scans of negatives, and 20 years of files in my home directory plus research
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Now I am home again, with a slow connect, and slowly but surely watching all the TV shows and movies I acquired. In retrospect, I probably should have bought a 1000 gig drive.
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I rip entire DVDs to my hard drive which averages to about 7 GB per DVD. Initially I was encoding them to DivX, xViD, or H264 to save space but it was just taking too much time... 2 to 3 hours for high quality compressed file (1.5 - 2 GB on average with AC3 sound) on a quad core. I decided to just dump the raw unencrypted files to disk figuring out (correctly) that the price per gigabyte is bound to keep going down. A 1TB drive would be able to store ~120 un-encoded DVDs.
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pOrn of course! After all the internet is for porn [google.com]
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During general use (web browsing, chatting, online java games like settlers of catan, etc) it uses around 40-45Watts.
This is switching from a PC that used between 110-120watts for the same thing.
You can save a lot if you shop smart.
The best part is I spent under $500 on the whole machine.
The other best part is machines that efficient are also completely silent without spending big money on super silent fans. I am using stock cooling on it.
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The problem is that unless OEMs start including these drives in computers, they probably won't sell very well.
If someone is looking at an OEM machine, they probably don't know what performance parameters a hard drive could possibly have other than space. They do know "green" so it might make the consumer feel better that it's got a nice eco-friendly label and a picture of a rainforest or something on the box.
. . . the geek who does buy one will end up offsetting the savings by throwing it in his machine with a 750W power supply and monster graphics card(s).
If they're that serious about gaming, they probably would be solely focused on the performance of the drive and what the benchmarks say, skipping version emblazoned with the aforementioned logos and nature pi
Re:Ads up (Score:4, Informative)
Yes, the choice of GPU certainly is very significant. A while back I built up a PVR using GMA950 to keep initial and long term costs down. It'd be awful for demanding games, but works great for HD video. Total system power consumption (less display) 82 Watts (measured during video compression). That's with a slightly overclocked Core 2 Duo too. I'm sure an Apple-TV uses far less than 82 Watts, but for scaling 1080i to 720p I needed more CPU.
The raw power rating for the power supply does not tell you anything about how much power you'll consume. That is simply a maximum output rating. It's a bit like saying a 120 Volt outlet in your house is rated to deliver 2400 Watts when fed from a 20 Amp circuit with nothing else running. The actual consumption depends on the load current you draw.
Power supplies do have conversion losses which are reflected by an efficiency rating. The rated numbers still don't tell you exactly what to expect since efficiency varies depending on how much of a load you have, and which outputs are doing the work.
The more you're consuming, the more important the efficiency rating is. I found some really cheap 600 Watt power supplies on sale, shipping included, for $15. No efficiency rating was given, and I'd suspect something so cheap of having problems when actually being asked to deliver close to 600 Watts, but they've worked flawlessly at low power levels.
Actual consumption of components and whole systems is usually quite different from sticker/spec-sheet figures. Some of those reflect maximum capabilities, some reflect things like startup surge currents, all generally change with options and actual use. Even something like running displays at the lowest acceptable brightness makes a significant difference. It's very helpful to use a meter such as the Kill-A-Watt [amazon.com] (set to Watts, not Volt*Amperes) to get a feel for these things.
Since power is fairly expensive where I am, I figure a cost of about $1 per month for every 10 Watts used continuously. Between torrents and recording at all hours, continuous applies for my PVR. Saving 10 Watts doesn't sound like much, but over 5 years that's about $60. If one likes to archive shows, it is quite likely that more than one drive will be used eventually multiplying the costs and savings. Of course if one keeps some archives on externals and powers them down, that would help even more. If OSes are not supporting drive sleep on a drive-by-drive basis, some changes there could save quite a bit too.
Using energy saving drives, using fewer big drives instead of a larger number of older small ones, using an energy efficient CPU, and avoiding a power hungry GPU if it isn't needed all add up to much more substantial energy savings. And remember, it's not just about the cost of energy, there's the environmental impact as well.
I haven't actually made measurements to see how much the power consumption of GPUs varies with what they're doing. I would hope that designs now, or in the near future, will allow a major fallback in consumption when user needs are not very demanding.
When people brag about benchmarks, I'd like to see one more added - one generated by dividing the traditional benchmark by the power consumption.
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A 750W PS that is "80 plus" certified uses less power at a low load (say 200W) than most 250-300W Power Supplies -- on the order of 20-40 Watts less. Most high-end power supplies you can buy are now "80 plus" certified.
And certain newer video cards (not SLI/ X2 / Crossfire mind you) are more power efficient as well. The process shrink to 65nm
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Buy a power supply with an "80 Plus" certification and you will save quite a bit of power as these PS are required to reach 80% efficiency at 20%,50% and 100% of their rated loads. Some hit 85-86% efficiency at their optimal loads.
On a computer using 200W of power, the "80 Plus" PS will save you 40W right off the bat - or as much as the savings you mentioned from the HD, CPU,
Heat == Noise (Score:2)
And you can start to use slower fans too. It's funny this came out right now - I'm in the process of designing a quiet 1U server, so I can run it in my office but not sacrifice too much performance. I'm finding that it's all about fan noise, and that's a function o
Just bought one (Score:4, Informative)
Anyway, the article the summary seems to be slashdotted, so here's the review at TechReport [techreport.com] I read before I ordered it, with lots of graphs and comparisons.
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It's coming to the point where eSATA is the only realistic solution for external drives. USB2 and FireWire 400 just don't cut it any more, and I haven't seen many systems supporting FireWire 800.
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This won't necessarily help much. The transfer rates quoted for SATA are either burst rates (ie. how quickly it can shift data off the cache) or they assume you'll be doing practically zero seeking - which is true if you've got one large contiguous file but on a filesystem, the order you request files in could be a
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just keep on dumping it in China (Score:4, Interesting)
Now if U.S could just stop pretending and sign the Basel Convention [wikipedia.org] deal which restricts the export of e-waste so the children of Guiyu [wikipedia.org] wouldn't have to waste away their lives [nwsource.com] in toxic pits melting our "green" and ecologically "safe" drives.
Recycling is great, recycling it near the consumpition is also great. Dumping it to China is not great, out of sight out of mind mentality comes and bites you in the ass sooner or later.
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They send thousands of boats here full of stuff, why not send them back full of "raw materials?" It is cheaper to build stuff in China and ship it here, so it would be cheaper to ship stuff there for recycling.
Don't misunderstand me, I don't think we should support unsafe working or environmental conditions, just that empty boats aren't efficient.
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Now if U.S could just stop pretending and sign the Basel Convention deal which restricts the export of e-waste so the children of Guiyu wouldn't have to waste away their lives in toxic pits melting our "green" and ecologically "safe" drives.
I'm unfamiliar with that so there I'm unclear on two things:
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Now open your eyes and start acting responsibly, recycle your own waste in U.S and stop dumping/selling it around the world.
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Now open your eyes and start acting logically, recycling your own waste to places that can use it, where the recycled material is closer to the place that it's going to be used and invigorates an economy that will ultimately help more people than the US has held in its entire history.
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saving 10 watts! (Score:5, Insightful)
Also with less power the drives should run cooler, this would really increase drive reliability.
I found most CoLo servers don't properly cool their drives especially 1U servers, where it seems I loose a few every year, but at home I can run those same drives for 5 years or more. Even the desktop servers I run in a dusty shed that freeze in the winter and bakes in the summer the drives are more reliable then the ones running in a CoLo with constant 50 degree super clean air, just because drives in 1U's run hotter constantly and under a heaver load.
RoHS is another story, it's been a somewhat difficult transition, unexpectedly is make passing FCC compliance more difficult because for the exact same board layout it had higher RF emissions. Don't know why, wonder if others have also seen that.
I don't see how RoHS is going to be any more "green", the largest change is moving away from tin/lead to Lead-free solders that contain some mix of tin, copper, silver, bismuth, indium, zinc, and antimony.
It's more expensive, and brittle which could decrease reliablity.
If the circuit boards are actually getting recycled instead of landfilled, it wouldn't make much difference anyhow.
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According to the Energy Infomration Administration [doe.gov], there are 107 million households in the US. The end-use consumption of electricity by household [doe.gov] shows 318 kWh (kilowatt hours) used for a dekstop PC on average per household. There is, unfortunately, no breakdown of the electricity consumption per component in the PC, so I'm left to wonder how much is used by the hard drive specifically.
Profiling your code proves the 80/20 rule is correct. Your program spends 80% of its CPU time in 20% of the code. Y
Breakdown of PC power usage (Score:2)
We did this very profiling, out designed cooled each component individually.
I dont' have the numbers in front of me, but if I recall for a typical P4 3Ghz system we saw the total average power consumption at something like 75 watts when idle and 150 watts or more under load. With the ACPI on it would dro
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power usage of computers has only increased since 2001
Actually that hasn't been the case, which has also been a surprise.
Manufacturers hit a wall on 100 watts CPU's were the heat sinks became too heavy to mount on the PCB.
And even though there are alternative solutions for some reason they just set that as the limit for desk top CPU's.
So all systems since 2000 and maybe even earlier have had about the same power consumption peak and idle.
What has happened is they lower the voltage on the CPU while increasing clock rates, and density.
In the end it keeps the po
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I have seen the cheap nasty garbage some people put into datacenters, poor cooling, poor airflow design (like a 1u case where the fan on the cpu can blow to either side (heating the northbridge or the psu), but not backwards (out through the vents).
If you stick with high quality servers, there's usually much less of a problem. I have some HP DL145 systems for instance, and the drives in them run quite cool and have a steady flow of air over them
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But, if you look at the article, the savings they claimed were more like 5-6 Watts. That is still quite a large savings from a hard drive, but it's not 10W. Maybe compared to the highest power usage drive, like a 15K RPM drive the savings may be 10 Watts.
The article in silentpcreview.com put these green WD drives at about 7.5 Watts, and the highest of the other quiet drives was 11.6 Watts. Quite a huge improvement.
As a long time HTPC user, thes
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For more info:
http://www.msnbc.msn.com/id/21151552/ [msn.com]
http://en.wikipedia.org/wiki/Whisker_(metallurgy) [wikipedia.org]
and of course, just to save someone a bit of typing or extra mouse click:
http://www.google.com/search?q=tin+whiskers [google.com]
Marc
heat isn't so bad (Score:3, Insightful)
the drives are more reliable then the ones running in a CoLo with constant 50 degree super clean air, just because drives in 1U's run hotter constantly and under a heaver load.
Heat isn't necessarily so bad. From Google's research on hard disk failure trends [google.com] [PDF]:
RoHS (Score:2)
The FCC RF emission problems is first hand experience from product development I am working on.
There are no published references and since we are not paid for science no effort was spent to tracking down the cause.
A design that was already shipping with standard tin/lead consistently failed RF emissions testing after a RoHS manufacturing.
This required us to shield the cases and re-route signals differently from the earlier non-RoHS design that did pass earlier with an unshielded case.
I understand "technical
Wrong Standard? (Score:3, Insightful)
RoHS says which materials can be used in construction, WEEE covers disposal. (In the EU at least)
Performance (Score:2)
A very interesting feature of the GreenPower drives is IntelliPower, which is a "fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance" according to WD. What this means to potential users is that WD isn't telling us the exact spindle speed of these drives. We know that they are likely spinning at a speed between 5400 and 7200 RPM and that each GreenPower model may use a different, invariable RPM. So, while WD made power the priority with the GreenPower platform, it did so without disregarding solid performance, a wise choice in our opinion.
That was my number one concern. If I am putting these in a data center, I would be a lot more worried about drive performance over how much power it consumes. However, if it consumes less power while offering the same performance, I am all for it.
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The SE16 GP rotates at 5400 rpm, the RE2 GP rotates at 7200 rpm. WD doesn't want to tell us this because lots of people think that 5400 rpm means it's slow. It's not. The SE16 GP performs like an average 7200 rpm drive (better than a 1TB Seagate, for example), and you're unlikely to really notice the performance difference with the real top
Great Summery Grammar... (Score:2)
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Review at the register: Not so good. (Score:3, Informative)
http://www.reghardware.co.uk/2008/03/26/review_four_terabyte_hard_drives/ [reghardware.co.uk]
Product
Hitachi Deskstar 7K1000
Verdict
The Hitachi set a decent benchmark for performance as a standalone drive.
Rating
70%
Suggested Price
£159
Product
Samsung SpinPoint F1 HD103UJ
Verdict
It's a straight fight between the Seagate and Samsung, and on balance we favour the Sammy despite its higher price.
Rating
85%
Suggested Price
£194
Product
Seagate Barracuda 7200.11 ST31000340NS
Verdict
The Seagate delivers sterling performance with the minimum of fuss, yet it is the cheapest of the drives on test.
Rating
80%
Suggested Price
£149
Product
Western Digital WD1000FYPS RE2-GP
Verdict
We're all in favour of reducing our dependence on electricity but the RE2-GP lagged behind in every one of our tests.
Rating
60%
Suggested Price
£159
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As noted, it's byt far the quietest and coolest dri
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If I was just using these to store backups of movies, then the power/heat savings would be dandy. I just happen to be screwed by worries of sustained thrashing.
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In essence, the perfect combination - a few expensive, high performance drives where performance really matters (yep, we have DB serv
Great for a Tivo (Score:2)
I really have no complaints.
"Green" not "Competing with Sandisk" (Score:2)
Actually (Score:2)
Even better... (Score:2)
Re:watts != Green (Score:4, Funny)
Come to think of it, this will probably be more practical for mac users, and not because they use less energy.
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Also, using less power means less power produced. And since virtually 100% of all power produced impacts the environment..
It's a good thing because it's practical to save energy where we can. That's good engineering. Pay no attention to the bullshit marketing, which I'm sure we'll see a lot more of in the coming years.
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You're being too cynical. Any reduction is beneficial and can result in less use of "dirtier" sources, even if you're not directly powered by them.
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Re:watts != Green (Score:5, Insightful)
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Did the computer suddenly get more green just beacause I moved it north 200 miles?
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Did the computer suddenly get more green just beacause I moved it north 200 miles?
No. It should make very little difference since things are interconnected. Unlike
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First of all, Apple's devices are the only ones out there that produce smug. Measuring greenness based on smug output is unfair to Apple.
Secondly, what? The amount of power a device consumes and the source of the power are completely independent things. There's no reason for them to be considered in the same breath.
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Most folks can't control how the power that comes to home or business is generated but they can at least reduce what they consume.
Reduce, Reuse, Recycle.
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Yeah, the tails on those Chryslers from the 60s were pretty insane. Oh, did you guys mean vain?
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...mean Much Lower Noise! (Score:5, Informative)
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Anybody who is building a recording studio should know how to deal with the PCs: put them in the next room, on the other side of your acoustic insulation, and just bring the cables through. You need to do that anyway, so there's no point making them quieter.
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Does being poor also make you stupid?
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Re:86400 Watts*Hours (Score:4, Insightful)
The earth is worth it! (Score:5, Interesting)
So yeah it's unrealistic to believe that every person is going to swap out their drives to use these, but when thinking about environmental issues it's important to put yourself in that frame of mind. I try do what I wish everyone would do. If everyone thought that way we'd get there eventually.
That being said I'm not going to swap out all my drives for these babies, but next time I need to buy or replace a drive, yeah for sure I'll cough up a little extra cash. As long as it's not just a marketing gimmick, and the price increase isn't too much, I'd be willing to take a slight loss on the principal alone. It's not just our pocket books that needs protecting.
But, as someone pointed out already, these drives are only a few bucks more than their non-green counterparts, so not only will they eventually save some cash, but they have the ability to make a difference too.
As a final thought, another thing that's important is make a point with manufacturers (through your wallet) that environmental issues matter. The more we think about it, and the more we get in the habit of making the small choices that all add up to a larger statement, the better off we all are.
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But whatever we improve, IT still represents an ecological disaster.
Take a look at every tech stuff around you. Where will they be in 5 years? Surely not around anymore!
Obviously, those "green drives" are better than nothing, but in some years, nobody will want to use any 1TB hard drive anymore, and this improvement in power consumption only took place because millions of hard drive have been produced.
Just like for cars, we reduce the environmental impact of each product separately
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Not sure how true it is, but some people are saying these drives are just binned 7200rpms that didn't make the cut. In any case, it seems clear that these drives are actually 5400rp
Measure it yourself (Score:2)
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Sheldon
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Note that I'm not saying this is a problem. I think it's great, few things need really fast performance.