Voiceover people love storage. And lots of it. While audio still takes up nowhere near as much disk space as video, it’s still relatively a storage hog in the world of traditional computer data. So at a time when hard drive storage and lots of it is so cheap, and it’s not uncommon to see PCs ship with 1TB (terabyte, or 1,000 GB) of disk space, I figured now would be a good time to take a quick look at the evolution of storage and where it’s going.
The hard drive was invented over 50 years ago, at IBM, in 1956, but they didn’t gain momentum in use with microcomputers until sometime in the ’80s, when the IBM PC/XT began shipping with internal hard drives. You could buy external drives for Apple II computers…they only stored 5MB (yes, megabytes) of data and cost around $2000. Today, you can walk into a Best Buy and get 160GB of storage for under $100. That’s 32,000 times the storage for 1/20 the price.
Most drives today in desktop computers spin at 7,200RPM with capacities up to 1TB. Notebook and laptop drives, which are physically smaller (2.5″ compared with 3.5″ for desktop drives) usually spin at 5,400RPM with capacities up to 250GB. Meanwhile, in servers that use higher-performance SCSI drives, the disks spin at 10,000 or 15,000RPM and generally have capacities up to around 300GB.
But in the last couple of years a new type of storage option has been gaining popularity. This is the SSD or Solid State Drive. These are already available and are devices that act like an ordinary hard drive, only they have no moving parts (hence the name) and can be very fast.
In theory, an SSD isn’t much different than your typical USB memory stick, except that it can have a higher capacity and can be much faster. The highest capacity USB memory sticks go up to about 32GB, which is nothing to sneeze at, but they’re much slower than a hard drive. Meanwhile, some companies have 128GB and even 256GB SSDs - enough to use in a laptop or even a desktop computer - with speeds that can be almost twice as fast as a conventional laptop or desktop hard drive.
But not all SSDs are created equal. I’m sure you’ve seen the barrage of MacBook Air TV commercials. The MacBook Air can be purchased either with a conventional hard drive or with an SSD. But many users are complaining that the SSD version offers no speed improvement or power savings (something an SSD should be able to do since it’s got no moving parts).
What it does have is a much higher price. $1,300 higher than a comparable MacBook Air with a normal hard drive.
And this is the big thing with SSDs. They’re very expensive. Again, while some SSDs use slower memory or architecture, others focus on performance. A company called Memoright has a 128GB SSD that has been tested at being twice the speed of a normal hard drive (see here for a review). But the price is incredibly high: $3,400 for the 128GB SSD.
It’s like the ’80s all over again.
Another company, STEC Inc., has even announced a 512GB SSD with real-world speeds that exceed those of the fastest SCSI drives and use only half the power. Now, if you’re wondering why these companies all sound unfamiliar, don’t worry. There are SSDs by major manufacturers such as Samsung, SanDisk and Lexar, and even Intel, but the bigger companies tend to take a little bit more time to get to market.
As with all new, expensive technology that has mass-market appeal, as time goes on, the prices will continue to drop more and more. Estimates are that within 4 years or so, SSD pricing will be at about $2 / GB, so figure $1,000 for a 512GB drive by that time.
Obviously, SSDs have a tremendous amount of potential in all areas of computer storage, not just DAWs and video production. And it does seem like SSDs are probably going to take over for traditional hard drives at some point: In addition to being able to match hard drives in terms of speed, the capacities will keep growing, and again, prices will keep dropping. And less power usage is always a good thing. But one of the biggest advantages is that SSDs have no moving parts, so their potential for longevity and reliability is much greater than that of the typical hard drive.
I’m really looking forward to using this technology myself. You know, as soon as the pricing gets out of the early ’80s.