Upon completion of this lesson, you will
be able to:
• Describe
the importance of information to individuals and to businesses
• Define
data and information
• Discuss
the categories of data
• Describe
the storage architectures and their evolution
Why
Information Storage
• “Digital
universe – The Information Explosion”
– Information is being created at ever
increasing rate
– Information has become critical for
success
• We
live in an on-command, on-demand world
– Example: Social networking sites,
e-mails, video and photo sharing website, online shopping, search engines etc
Nearly
a quarter of the world's population – roughly 1.4 billion people – will use the
Internet on a regular basis in 2011.
4,700,000,000 video streams monthly
- England has approximately 4 million surveillance cameras
- 1 for approximately every 14 Britons
Storage
requirements: Facebook
•10,000,000,000
photos
•2-3
Terabytes of photos are being uploaded to the site every day
•One
petabyte of photo storage Serve over 15 billion photo images per
day
•Photo
traffic now peaks at over 300,000 images served per second