The Tera Era or Peta is Better?

Here are some fascinating stats about data storage (thanks to my friend Glenn Rempe for finding some), spawned in part by my purchase of an Infrant ReadyNAS NV+ 3TB device:

From an article in Computer Technology Review:

In terms of raw numbers, IDC, a leading market intelligence and research firm, estimates the volume of digital data in the world at 2.81 exabytes (EB), or 2.81 million terabytes (TB) as of 2007*. It’s a volume, IDC notes, that is larger than the number of stars in the universe. More astoundingly, IDC also estimates that the amount of digital data will grow by a factor of 10 every five years, thereby surpassing the number of atoms in the universe in about 15 years.

Hard Drive Capacity over Time

A Petabyte

You could store video of your entire life in a petabyte. 1 petabyte is about 2,000,000 hours of video based on current video file size.  And there are 700,000 hours in an 80 year old person’s life.

Finally, here’s a link to an article from Wired called “The Petabyte Age: Because More Isn’t Just More – More is Different.”  Staggeringly, Google, processes a petabyte of data every 72 minutes.

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1 thought on “The Tera Era or Peta is Better?

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Glenn Rempe September 26, 2008, 10:24 pm

Here’s another from the world of mind-boggling numbers…

The current internet addressing scheme ‘IPv4’ is being slowly replaced by ‘IPv6’ since the number of IPv4 addresses will shortly run out. The designers went big with the IPv6 address space to make sure we never run out.

“The very large IPv6 address space supports 2^128 (about 3.4×10^38) addresses, or approximately 5×10^28 (roughly 2^95) addresses for each of the roughly 6.5 billion (6.5×10^9) people alive today. In a different perspective, this is 2^52 addresses for every observable star in the known universe – more than ten billion billion billion times as many addresses as IPv4 (2^32) supported.”

IPv4 Address:

IPv6 Address:

IPv6 on Wikipedia


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