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Why a Hard Disk Is a Better Bargain Than an SSD

Lucas123 writes "While solid state disks may be all the rage, what's often being overlooked in the current consumer market hype is that fact that hard disk drive prices are at an all-time low — offering users good performance and massive amounts of capacity for 10 to 30 cents a gigabyte. And in a side by side comparison of overall performance of consumer SSDs and HDDs, it's hard to justify spending 10 times as much for a little more speed."

31 of 403 comments (clear)

  1. Understatement by zaibazu · · Score: 4, Informative

    "A little more speed" ? how a bout a lot more speed ? Putting the OS on a quality SSD gave lots of people immense performance gains.

    1. Re:Understatement by initdeep · · Score: 5, Insightful

      but burst speed measured with HDTach is the only metric that's important when you wish to make your point that traditional rotating platter based hard drives are "nearly as fast" as quality SSD drives.

      seriously.....

      is there anyone by now that HASN'T seen the extensive test by Anandtech that completely DESTROYS this bullshit article?

      All that matters in the real world for HDD performance is Random read and write speeds.
      And the difference in the two is an order of magnitude or more using the very fastest consumer drives (WDVR) and a quality SSD (Intel X-25).

    2. Re:Understatement by StayFrosty · · Score: 5, Insightful

      This benchmark shows Intel's X25-E SSD beating a 15k Seagate Cheetah SAS drive by over 50MB/s read and 10MB/s write speeds. I'd hardly call this "a little more speed." The SSD seems even better when you figure in the noise and heat generated by the 15k RPM Cheetah.

      --
      "Frequently wrong, never in doubt."
    3. Re:Understatement by qortra · · Score: 5, Insightful

      I'll go for capacity every time

      Will you? Even when your primary objective is one of the following?

      • Speed (Reading)
      • Low Power
      • Low [No] Noise
      • Low Heat
      • Robustness
      • Longevity (debatable)

      If you just need storage, I would agree with you. My file server uses an array of traditional 1TB HDD like everybody else, but when you have a file server with all your data, none of the other computers in your house will need significant amounts of their own capacity. Why target capacity on basically a thin client when you can get something smaller with so many better attributes?

    4. Re:Understatement by blitzkrieg3 · · Score: 5, Informative

      but burst speed measured with HDTach is the only metric that's important when you wish to make your point that traditional rotating platter based hard drives are "nearly as fast" as quality SSD drives.

      seriously.....

      is there anyone by now that HASN'T seen the extensive test by Anandtech that completely DESTROYS this bullshit article?

      All that matters in the real world for HDD performance is Random read and write speeds. And the difference in the two is an order of magnitude or more using the very fastest consumer drives (WDVR) and a quality SSD (Intel X-25).

      The best part is that this isn't even an article, just a random slashdot user musing that SSD's aren't worth it and a review of two of the newest high performance disk drives.

      Or maybe there is a typo and he actually wanted to link to this story?

    5. Re:Understatement by Abcd1234 · · Score: 5, Insightful

      And for contrast:

      Filesystem                Size  Used Avail Use% Mounted on
      /dev/mapper/mythvg-mythtv 658G  645G   14G  98% /mythtv

      Or: Pick the right tool for your job. :)

    6. Re:Understatement by hairyfeet · · Score: 4, Insightful

      While what you are saying is true, how many of the common folk are actually going to need or even be able to notice the difference in their day to day tasks? I build and repair PCs for a living, and you know what I hear time and time again from my customers on the new AMD 7550 and Pentium Duals I sell them? "OMG it is just so fast! This is incredible!". You know why? Because CPUs passed ludicrous speed awhile back. If you were to secretly swap their new bottom of the line dual for an octo-core monster I doubt very seriously they notice anything except the fans are loader.

      The same thing has happened with hard drives. Those old 400Mb to 20Gb HDDS were slow as hell, but for today's tasks? The new drives with 16-32Mb and beyond RAM caches are just crazy fast for the jobs folks have for them to do. The only places I see these taking off is in the ultra mobile Netbook and Smartbook space, and of course the gamers who see no problem with shelling out insane money to get another 3-FPS in Crysis. For most folks the HDD ain't the problem, and it hasn't been for awhile. It is the OEMs cheaping out and doing stupid shit like putting a Vista image filled with bloatware on a box with a crappy 512Mb of RAM.

      Of course since all my customers go bragging to all their friends and family how much better anything I build is compared to a Dell (because I refuse to sell anything with less than 2Gb, preferably 4Gb of RAM) I get plenty of business from referrals. Thanks Dell!

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    7. Re:Understatement by L4t3r4lu5 · · Score: 3, Insightful

      Replace "Longevity" with "Resistance to mechanical failure" and you're onto a winner.

      --
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    8. Re:Understatement by Anonymous Coward · · Score: 4, Insightful

      Honestly, some people are becoming garbage collectors though. Lots of content they never watch, that just sits around on disk spinning around in circles.

    9. Re:Understatement by ILongForDarkness · · Score: 4, Insightful

      I agree. I have friends that have just bought another 1TB drive, reason the old ones full. They have stuff that people gave to them or they downloaded 2+ years ago and haven't gotten around to watching yet. I had a friend in university that had 1k + anime films. Again he didn't watch most of them, they were there in case someone recommended one to him he'd already have it. Geesh. I get by just fine on a 100GB laptop drive. It is good enough for a few seasons of T.V. shows in normal def, I watch an episode and delete it. I think some people are just compulsive collectors or they get some kick out of being able to say "oh I have all of those do you want them" if anyone asks.

    10. Re:Understatement by jon3k · · Score: 4, Interesting

      Your logic doesn't track. It is specifically BECAUSE CPUs are so fast that the slow performance of HDD is exacerbated even farther. Hard drives were always the slowest component in PCs, but as RAM and CPUs get faster and faster, without any appreciable difference in HDD speed, the gap grows farther and farther.

      I have a friend who just replaced a single 72GB Raptor (not Velociraptor, but still a 10K RPM SATA HDD with 32MB of cache) with TWO (2) OCZ Vertex 30GB SSDs in RAID0 and let me tell you, the difference in performance is nothing short of staggering (and was with a single drive before he added the second). Solid state drives are the single largest upgrade you can do to any modern PC assembled from parts manufactured in the last 3 years.

      If you haven't seen the difference with the new generation of SSDs (Intel X25-E/M and anything with the Indilinx or Samsung controllers - not JMICRON drives) I seriously encourage you to do yourself a favor and just try one out. You can get a 30GB Vertex for as low as ~$130. Sure, it benchmarks with TWICE the throughput of the fastest consumer HDD on the planet (WD VelociRaptor) but that doesn't really tell you the whole story. It's not just throughput, its the random read speeds and the total silence from the drive that is just absolutely awesome.

    11. Re:Understatement by Bigjeff5 · · Score: 4, Insightful

      However, if you only write to it once (i.e. long-term storage) flash storage will never degrade.

      Well, we're talking long enough for the metal itself to deteriorate via weathering and such, at which point you'll be dead and gone!

      Every time a spinning disk is plugged in, there is a small chance it will fail just in the act of spinning up. It's tiny sure, but it's there for spinning disks and not for SSDs.

      Honestly, the flash drive is capable of so many writes (it's in the thousands, and the drives write every bit on the disk before it will go back and re-write) that they likely outlast conventional drives in all but the most write-heavy applications.

      Plus, when a flash drive fails, the failure does not prevent reads, only writes. Recovery would be as simple as plugging it in and pulling your data off. With conventional disks, a physical failure -often- results in unrecoverable data. The reason data recovery services cost thousands of dollars is because it is extremely difficult, if not impossible, to recover the data in many cases. Trust me, I know a number of people who have gotten backup religion only after spending thousands of dollars to fail to recover a critical piece of data (one was a single file needed for a massive audit - all was recovered except that file). The ability to read even after a failure makes SSDs -significantly- safer for data storage.

      Lastly, the speed boost is HUGE. Go check the read/write numbers for SSDs vs the top end consumer drives. The worst SSDs on the market only do a little better than the best conventional drives, the benchmark I saw put various SSDs against a top of the line WD Raptor - 12k rpm I think. Due to a poor controler design, the lower end drives only performed a little better. The high end drives made the Raptor look like a complete joke. Even with the performance flaw another slashdot article mentioned (drives aren't as fast after they have been filled up, it is fixable on most drives) the top SSDs were still -significantly- faster than the Raptor. I think the prices were even similar for the same capacity, but I could be remembering funny on that one. You definitely don't get 12krpm out of a 1tb hard drive though, they are still in the 300gb range for the consumer market if I remember right.

      --
      Security is mostly a superstition... Avoiding danger is no safer in the long run than outright exposure. - Helen Keller
  2. "hard disk drive prices are at an all-time low" by riflemann · · Score: 5, Insightful

    Aren't hard disk prices always at an all time low? Have they ever gone up in price?

    1. Re:"hard disk drive prices are at an all-time low" by CosmicRabbit · · Score: 4, Interesting

      What makes sense to analyze is not just the hard disk prices per se, but how the price sweet spot evolves in specs, as well as the sweet spot price trends. There's an interesting article about this here

  3. If you have ever owned one by Goodl · · Score: 5, Interesting

    you would know why you would never ever go back for your boot drive, these things are just so night and day faster. Yes it squeezed my budget till it squeaked to get my Intel x25-m (early adopter) but I'd never have anything else now for boot, my Velociraptor went on Ebay after a week of using it. I'm considering a second for raid0 even though as it is it's fast enough (more for the extra space than speed tbh now they have come down in price). Bulk storage is fine for movies etc, but for the OS space mechanical magnetic disks are a dead dead end to me.

    --
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  4. forre.st storage calculator by langelgjm · · Score: 5, Interesting

    FYI, this is a pretty nifty tool that pulls drive information from Newegg and calculates the best price/size so you can quickly find out the best deal.

    --
    "Anyone who [rips a CD] is probably engaging in copyright infringement." - David O. Carson
    1. Re:forre.st storage calculator by stiller · · Score: 5, Informative

      I like this one better: http://diskcompare.com/

  5. pointless analysis: -1! by MagicMerlin · · Score: 5, Insightful

    From the article: "(Random access was a jaw-dropping 7ms.)" 7ms random access time is not "jaw dropping"...in computer terms it's an aeon. This fascination with sequential read and write speeds has got to stop. A ssd with 40 mb/sec read and write but 0.1ms random access time will fell faster than a 200mb/sec hard drive for a large number of applications. In the enterprise world, random access time is even more important. Performance critical databases run on giant storgage systems with dozens of disks not for storage reasons, but because of limitations of the spinning platter. SSDs stand poised to revolutionize computing by drastically raising the slowest (and most important) component in the computer a couple of orders in magnitude of performance.

  6. Doesn't die.... by Darkness404 · · Score: 5, Insightful

    If I have an SSD in a laptop and I drop the laptop, what are the chances that even if my screen goes splat, my keyboard gets crumbled and the case splits open that my data is still safe? Pretty good. On the other hand, if the same laptop had a hard disk, you are looking at some pretty expensive data recovery plans to get data off of it. Sure, SSDs may have other issues (such as you can only write to a certain sector so many times till it becomes read-only) but with SSDs now and in the future you shouldn't have unpredictable failures like what happens to so many HDs.

    --
    Taxation is legalized theft, no more, no less.
  7. Define "bargain" by Cutie+Pi · · Score: 5, Interesting

    I don't think anyone out there is saying that from a $/GB perspective that SSD's are a bargain.

    But here are two key points:

    1) Not everyone needs 1TB of storage (about $100, and practically entry level now for hard drives). Especially on laptops, a $350 32GB SSD (also entry level) can get you quite far, especially if it is reserved for the OS and applications. You can pick up a 32GB SSD for a reasonable price, and get the really good performance, and use a big, cheap HD for media files.

    2) Many people view the extra performance + lower power consumption + greater reliability as worth the premium price, and that makes them a value. Just because they can't compete on a $/GB basis doesn't make them a bargain to some people.

    1. Re:Define "bargain" by fuzzyfuzzyfungus · · Score: 5, Insightful

      There are, actually, a lot of areas where flash based storage is a bargain(though, they don't tend to be areas where SSDs are used).

      If you quote the cost/gig of magnetic storage based on the price of a basic OEM drive in whatever the sweet spot happens to be at the time, it looks like an incredible deal. 10 cents/gig seems to be the going number these days. However, that is for a 1TB+ drive. What if you only need 4GB, or 1GB, or 16MB? You can get a 1TB drive for $100; but you can't get a 1GB drive for 10 cents, or even $10. Traditional hard drives have comparatively high fixed costs("fixed" in the "these costs are more or less the same between the lowest capacity and the highest capacity" not in the strict economic sense). The cheapest HDD you can get(new, quantity one, not off the back of Honest Yuri's truck) is $25-$30, no matter how small a drive you want. For roughly the same price, you can get an 8GB flash drive under the same conditions.

      For any application at or under 8GB(a number that is way higher than it used to be, and will probably keep rising) flash is actually cheaper than HDD, because of HDD's high fixed costs. Not to mention all the applications where a full hard drive is undesirable for other reasons. This certainly doesn't include file servers(unless IOPs are a big consideration) and it doesn't yet cover most desktop/laptop scenarios(though it is much closer than it used to be, and it does cover a fair few netbooks); but it does include the overwhelming majority of PMP, appliance, and embedded applications.

  8. 2.5" or 3.5" ? by Anonymous Coward · · Score: 4, Insightful

    Looks like the submitter is mixing up 2.5" HDD and 3.5" HDD.
    SSD is all the rage in the 2.5" segment, not the 3.5" (yet, as they are much much faster than what's described in the article and much more expensive as well).
    I can't fit these very fast 3.5" HDD in my Macbook Pro no matter hard I try.

  9. Wrong article linked by smallshot · · Score: 5, Informative

    The article in the link is from July 31, 2008 and has nothing to do with SSDs, but rather a comparison of WD HDDs. I think they meant to link to this one: http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9134468 from today (June 18, 2009)

  10. This article is nearly 80 computer years old by Papabryd · · Score: 5, Informative

    Let me be the first of many to point out this article was posted July 31, 2008, though its central point still stands. Also worth nothing, this article was written before Intel's X-25 SSDs were released which moved the performance bar so high that their insane price (~3-4$/GB) started to make sense for the some people.

  11. Alchemy by siloko · · Score: 3, Funny

    "A little more speed" ? how a bout a lot more speed ?

    No matter what I do with my Bunsen Burner and Alchemy cookbook I can still only turn my SSD's into a molten pile of useless debris. Which smells.

    Tips for speed production using only harddrive technology would be most welcome.

  12. Performance has always had its premium. by MarchTheMonth · · Score: 5, Interesting

    Higher performing parts have always carried a higher price. However, there is a need for higher performance, and clearly the market shows that the demand is there for the price, I'm looking at you servers and computer enthusiasts.

    I have a 300GB velociraptor in my computer, and I have been eye'ing the SSD's for some time, but they just haven't hit the price point for me yet to justify purchasing them yet.

    In fact, I feel like an oddity, I work for a small IT firm, and when I asked my boss why a customer's computer had a raid0 of 250'sGB (where we had to replace them both with a new 500GB) why did he just get a velociraptor in the first place, he simply stated that it was cheaper to get 2 250GB hard drives at $60 than it was to get 1 300GB velociraptor.

    Now, the only thing that may change the landscape from all this is that SSDs are built on silicon, which is subject to Moore's Law, and we've witnessed how cheap thumb drives and other flash media drives are, there's definitely a real possibility that in time SSD's will be faster AND cheaper than HDDs.

  13. Wrong article link by crt · · Score: 5, Informative

    Should have been this article.
    That said, I don't think anyone claims SSD is better than HDD if your bottleneck is capacity or sequential read speed. However if you do lots of random reads/writes, this line from the comparison says it all:
    OCZ's drive had a random access time of .2 milliseconds; Seagate's 16.9 milliseconds.
    That's an 84X difference.

  14. That's not quite an honest statement. by talldean · · Score: 4, Insightful

    You drop them, and they don't break. That seems - for many, including myself - the killer feature. For internal laptop drives, they take less energy, so my laptop lasts longer. And on my laptop, since it's not my primary machine, I don't need an enormous drive. That said, you were right; it's hard justifying extra cost for a small speed bump, but that's a less-than-honest way to phrase this particular choice.

  15. Moving parts by krulgar · · Score: 4, Interesting

    Read distance measured in microns, magnets, heads, cylinders, normal forces, weight and my favorite, impact functions - all of these seem like great reasons to move to SSD.
    1000 (or more) rewrites is a scary limit for the SSD route, but I like the idea of walking around with my laptop on and not worrying about drive failures (as much).

    Take this for what it's worth, but I was at a conference a couple years ago and the VP of Intel's desktop support division said that 30% of his problems with laptops were solved by requiring folks to wait for the drive to spin down after hibernating/shutdown operations and before shouldering the laptop. Even if the number seems somewhat inflated, it seems like good advice for anyone with a "conventional" hard drive.

  16. Article Misses The Mark by blitzkrieg3 · · Score: 5, Insightful
    This is some seriously shoddy reporting. Take for example this gem:

    Next I transferred a 1GB folder filled with photos and video files to the drives from a USB drive. Both the SSD and the HDD accomplished the file transfer in about 50 seconds (the Seagate was 2 seconds slower).

    Hmm, interesting that they both performed exactly the same. I would have expected the HDD to be faster transfering sequential data, except they were probably both limited by the transfer rate of the older, generic USB drive you were using. Way to go, you've successfully benchmarked the transfer rate for a USB drive that you weren't even reviewing.

    Or this:

    A lot depends on how you expect to use your computer. If you're a college student writing papers and surfing the Internet for information, the advantages of an SSD are negligible, but if you're downloading video and using multiple applications at the same time, an SSD will give you a very noticeable performance boost, Wong said.

    This is exactly backwards. The college student downloading video will need the extra hard drive space, where the college student writing papers and surfing the internet is going to have a much better experience with storage that performs better under random io workloads. But then again, what college student these days doesn't have an external usb hard drive for all their media?

    They also mention that consumers will likely look for larger storage regardless of the type of underlying technology. But the consumers likely to care are the same as those likely to know the difference between HDD and SDD in the first place. The consumer that doesn't is more likely to make a purchase based on "wow 20 second bootup" and "MS Office starts in a snap, and everything goes faster" than anything else.

    For interactive workloads nothing beats SSD.

  17. I remember an article like this by jandrese · · Score: 5, Insightful

    Back maybe 5 years ago there were articles like this talking about how CRTs still had so much to offer and how they were so cheap and how LCD displays were still new and expensive...

    Somehow I expect this article to have a similarly short shelf life and will look at best amusingly quaint in about 2-3 years when SSDs start getting really price competitive with spinning platters. Probably not cheaper, but close enough that people will be willing to pay the extra for the rather substantial performance improvement.

    --

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