SSDs won't replace hard drives anytime soon
TweetFollow Us on Twitter

SSDs won't replace hard drives anytime soon

Solid state drives are one of the hot technologies of the day. However, "hotness" and "the cloud" aside, look for hard drives to maintain their importance for months to come. No, make that years to come.

Maximum areal densities in hard disk drives (HDD) are expected to more than double during the five-year period from 2011 to 2016, spurring continued growth for HDDs in storage-intensive applications such as video and audio systems, according to the iHS iSuppli (http://www.isuppli.com) research group.

HDD areal densities measuring data-storage capacities are projected to climb to a maximum 1,800 Gigabits (Gb) per square inch per platter by 2016, up from 744 Gb per square inch in 2011. This means that from 2011 to 2016, the five-year compound annual growth rate (CAGR) for HDD areal densities will be equivalent to 19%. For this year, HDD areal densities are estimated to reach 780 Gb per square inch per platter, and then rise to 900 Gb per square inch next year.

"The rise in areal density will pave the way for continued growth of the HDD industry," says Fang Zhang, analyst for storage systems at IHS. “Densities will double during the next five years, despite technical difficulties associated with the perpendicular magnetic recording (PMR) technology now used to create higher-areal-density hard disks. In particular, growth opportunities will lie in applications associated with mass enterprise storage requirements, gaming, and in digital video recorders (DVRs) where massive capacity is required to store high-definition video."

Also, look for them to be used in, at least, the iMac with Apple pushing HD (as in 1080p) movies on the iTunes Store. Of course, Apple could ship Macs with solid state drives and expect you to spring for an external hard drive drive for external storage. That might make sense for the MacBook Air, but less practical for pro laptops and downright impractical for iMacs and Mac Pros.

Areal density is the amount of data that can be physically stored in a given amount of space on a platter inside an HDD. Higher areal densities mean that data can be packed more tightly onto the surface of a disk, resulting in overall greater storage capacity. Areal density equals bit density, or bits of information per inch of a track (BPI), multiplied by tracks per inch (TPI) on a platter.

This measure of density is distinct from actual HDD capacity. This is because HDDs commonly use multiple platters.

HDD areal density topped the 4-terabyte (TB) mark for the first time in September 2011 with the introduction of an external hard drive from Seagate Technology that was designed for desktop applications. The Seagate HDD had five platters each with an areal density of 625 Gb per square inch, equivalent to more than 1TB per platter.

Only a year earlier in 2010, the highest areal density that could be achieved for a platter amounted to 550 Gb per square inch. While no forecast is yet available for the newly minted 4TB hard disk drive segment of the storage industry, the current 4TB products on the market will surely prove welcome for users hoping to accommodate copious and ever-increasing amounts of data, including storage-intensive formats like gaming, music and videos.

For example, 1TB of storage can hold approximately 350,000 MP3 songs at an estimated 2.85 megabytes per song, or up to one million photos at an estimated 1 megabyte per 2.4 megapixel JPEG-format photo, or up to 76 hours of uncompressed digital video at a data rate of 13 gigabytes per hour. With a 4-TB hard drive, that capacity quadruples to roughly one million songs, or 1,000 hours of high-definition video, or 4,000 hours of standard video, or 1,400 movies.

Just five years ago, HDD storage capacity per platter was at a maximum of 180 gigabits per square inch. Platters crossed the terabyte level for the first time in 2007, with hard disk drives comprising two or more platters becoming more common as HDD storage capacities increased. Now with the 1TB per-platter milestone already reached, 5TB hard disk drives using five platters could be available on the market later this year.
Following Seagate’s 4-TB external hard disk drive product for the desktop HDD

HDDs with more than 1TB in density per platter have also been released by the industry for the mobile market, with Toshiba’s 2.5-inch, 1TB version boasting the highest areal density for drives targeting the portable PC and consumer electronics space.

All HDD manufacturers currently use PMR technology for existing HDD products, but the industry consensus is that existing PMR technology has two to three generations left before reaching its areal density limit at about 1-terabit (Tb) per square inch. In fact, despite the solid five-year CAGR for higher-density HDDs, growth rates could have been much higher were it not for PMR technology nearing its limit.

Nonetheless, new developments are on the way. For instance, Seagate in March announced it h-- 30% higher than what could be achieved through PMR technology -- by using heat-assisted magnetic recording (HAMR) technology, a promising approach to enable large increases in the storage density of hard disk drives.

HAMR technology is likely to lead the way in creating next-generation HDDs, even though satisfactory costs via HAMR comparable to those of PMR have yet to be seen. In theory, however, advanced technologies like HAMR could extend HDD areal density to a range spanning 5-10 Tb per square inch.

The highest capacity for 3.5-inch HDDs could then reach 30TB to 60 TB, while the smaller and thinner 2.5- inch HDDs used in increasingly popular thinner notebooks could reach 10 to 20 TB.

Now that's some serious storage. And it makes solid state drives, despite their advantages, less desirable considering their high price and low storage capability.

-- Dennis Sellers

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Lyn 1.5.11 - Lightweight image browser a...
Lyn is a lightweight and fast image browser and viewer designed for photographers, graphic artists and Web designers. Featuring an extremely versatile and aesthetically pleasing interface, it... Read more
NeoOffice 2014.11 - Mac-tailored, OpenOf...
NeoOffice is a complete office suite for OS X. With NeoOffice, users can view, edit, and save OpenOffice documents, PDF files, and most Microsoft Word, Excel, and PowerPoint documents. NeoOffice 3.x... Read more
LaunchBar 6.4 - Powerful file/URL/email...
LaunchBar is an award-winning productivity utility that offers an amazingly intuitive and efficient way to search and access any kind of information stored on your computer or on the Web. It provides... Read more
Remotix 3.1.4 - Access all your computer...
Remotix is a fast and powerful application to easily access multiple Macs (and PCs) from your own Mac. Features Complete Apple Screen Sharing support - including Mac OS X login, clipboard... Read more
DesktopLyrics 2.6.6 - Displays current i...
DesktopLyrics is an application that displays the lyrics of the song currently playing in "iTunes" right on your desktop. The lyrics for the song have to be set in iTunes; DesktopLyrics does nothing... Read more
VOX 2.5.1 - Music player that supports m...
VOX is a beautiful music player that supports many filetypes. The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features and support for all... Read more
NetNewsWire 4.0.0 - RSS and Atom news re...
NetNewsWire is the best way to keep up with the sites and authors you read most regularly. Let NetNewsWire pull down the latest articles, and read them in a distraction-free and Mac-like way. Native... Read more
MacUpdate Desktop 6.0.6 - Search and ins...
MacUpdate Desktop 6 brings seamless 1-click installs and version updates to your Mac. With a free MacUpdate account and MacUpdate Desktop 6, Mac users can now install almost any Mac app on macupdate.... Read more
ForkLift 2.6.5 - Powerful file manager:...
ForkLift is a powerful file manager and ferociously fast FTP client clothed in a clean and versatile UI that offers the combination of absolute simplicity and raw power expected from a well-executed... Read more
Drive Genius 4.1.0 - Powerful system uti...
Drive Genius 4 gives you faster performance from your Mac while also protecting it. The award-winning and improved DrivePulse feature alerts you to hard drive issues before they become major problems... Read more

Biz Builder Delux (Games)
Biz Builder Delux 1.0.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0.0 (iTunes) Description: Ah, there's nothing like the rhythmic bustle of a burgeoning business burg... especially when you're the one building it... | Read more »
Auroch Digital is Bringing Back Games Wo...
| Read more »
Carbo - Handwriting in the Digital Age...
Carbo - Handwriting in the Digital Age 1.0 Device: iOS Universal Category: Productivity Price: $3.99, Version: 1.0 (iTunes) Description: | Read more »
Draggy Dead (Games)
Draggy Dead 1.1 Device: iOS Universal Category: Games Price: $.99, Version: 1.1 (iTunes) Description: Ditch your dead end job and take up a rewarding career in Grave Robbing today!Guide the recently deceased to a fun filled life of... | Read more »
Bad Dinos (Games)
Bad Dinos 1.0.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0.0 (iTunes) Description: | Read more »
The Apple Watch isn't Great as a Fi...
| Read more »
Show the World What You See With Stre.am...
Live broadcasting is getting popular on mobile devices, which is why you can now get Stre.am, by Infinite Takes. [Read more] | Read more »
PhotoTime's 2.1 Update Adds Apple W...
The latest PhotoTime update is adding even more functionality to the handy photo organizing app. Yep, including Apple Watch support. [Read more] | Read more »
Oh My Glob! Adventure Time Puzzle Quest...
Finn and Jake are taking over D3 Go!'s popular puzzle game series in the upcoming Adventure Time Puzzle Quest. [Read more] | Read more »
Earthcore: Shattered Elements - Tips, Tr...
At first glance, Earthcore: Shattered Elements seems like a rather simple card-battling game. Once you’re introduced to skills that will change quite a bit. Even more so once you start to acquire hero cards. But it’s not so complicated that we... | Read more »

Price Scanner via MacPrices.net

OtterBox Maximizes Portability, Productivity...
From the kitchen recipe book to the boarsroom presentation, the OtterBox Agility Tablet System turns tablets into one of the most versatile pieces of handheld technology available. Available now, the... Read more
Launch of New Car App Gallery and Open Develo...
Automatic, a company on a mission to bring the power of the Internet into every car, has announced the launch of the Automatic App Gallery, an app store for nearly every car or truck on the road... Read more
Memorial Day Weekend Sale: 13-inch 1.6GHz Mac...
Best Buy has the new 13″ 1.6GHz/128GB MacBook Air on sale for $849 on their online store this weekend. Choose free shipping or free local store pickup (if available). Sale price for online orders... Read more
Memorial Day Weekend Sale: 27-inch 3.5GHz 5K...
Best Buy has the 27″ 3.5GHz 5K iMac on sale for $2099.99 this weekend. Choose free shipping or free local store pickup (if available). Sale price for online orders only, in-store prices may vary.... Read more
Sale! 16GB iPad mini 3 for $349, save $50
B&H Photo has the 16GB iPad mini 3 WiFi on sale for $349 including free shipping plus NY sales tax only. Their price is $50 off MSRP, and it’s the lowest price available for this model. Read more
Price drop on 2014 15-inch Retina MacBook Pro...
B&H Photo has dropped prices on 2014 15″ Retina MacBook Pros by $200. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.2GHz Retina MacBook Pro: $1799.99 save $200 - 15″ 2.5GHz... Read more
With a Mission to Make Mobile Free, Scratch W...
Scratch Wireless, claiming to be the world’s first truly free mobile service, has announced the availability of a new Scratch-enabled Android smartphone, the Coolpad Arise. The smartphone is equipped... Read more
First-Ever Titanium Alloy Curved iPhone 6 Scr...
One of the most common problems with mobile phones is damage to the screens. The slightest drop can cause a dreaded spider web of gashes and cracks in the glass panel surface that can cost $hundreds... Read more
Preorder new 12-inch MacBook, $10 off, save o...
Adorama has new 12″ Retina MacBooks available for preorder for $10 off MSRP including free shipping plus NY & NJ sales tax only. For a limited time, Adorama will include a free Apple USB-C to USB... Read more
Will iOS 9 Finally Bring Productivity Friendl...
Ah, the irony. From its original announcement in 2010, Apple has doggedly insisted that the iPad remain “simple,” thus arbitrarily limiting its considerable potential as a content creation and... Read more

Jobs Board

*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail Read more
Business Development Manager - *Apple* Pay...
**Job Summary** Apple Pay is seeking an experienced Business Development professional to join the Apple Pay team to develop partnerships and strategic alliances with Read more
Project Manager, *Apple* Retail New Store O...
**Job Summary** An Apple Retail New Store Openings & Remodels Project Manager is responsible for successfully managing the openings, remodels, and small works of Read more
SW QA Engineer - *Apple* TV - Apple (United...
**Job Summary** The Apple TV team is looking for experienced Quality Assurance Engineers with a passion for delivering first in class home entertainment solutions. **Key Read more
Partner Marketing Manager - *Apple* Pay - A...
**Job Summary** The Apple Pay partner marketing team is looking for a marketing manager to develop and drive US marketing programs with our financial institution Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.