“In many ways, cloud computing is simply a metaphor for the Internet, the
increasing movement of computer and data resources onto the Web. But
there’s a difference: cloud computing represents a new tipping point for
the value of network computing. It delivers higher efficiency, massive
scalability, and faster, easier software development. It’s about new
programming models, new IT infrastructure, and the enabling of new business
Excerpt from – Sun Microsystems' White Paper on “Taking Cloud Computing
to a Higher Level”
Cloud computing is becoming a mission critical factor as more corporations
move their infrastructures to the cloud. A key to a successful cloud
migration is not in the deployment but in the management after you are there.
Here are some graphs showing performance over time for some of the most
common cloud computing providers.
Graphs provided by cloudclimate.com.
GoGrid Performance Graph
Amazon EC2 US Performance Graph
Amazon EC2 EU Performance Graph
cloudImpact will be updating these performance graphs periodically and
trending the results over time.
There are several kinds of Cloud Computing service offerings. Here are the
most common ones.
Common Services. Some products offer Internet-based services—such as
storage, middleware, collaboration, and database capabilities—directly to
SaaS. Software-as-a-service products provide a complete, turnkey
application—including complex programs such as those for CRM or
enterprise-resource management—via the Internet.
PaaS. Platform-as-a-service products offer a full or partial development
environment that users can access and utilize online, even in collaboration
with others.... (more)
Availability. Cloud-computing proponents say a system run by a large service
provider that has money and redundant equipment should offer more
availability than an infrastructure run by a small or even mid-sized company.
Application integration and support. The systems generally use SOAP, the Web
Services Description Language (WSDL), and other nonproprietary Web service
protocols, many XML-based. This enables easy interaction with and support of
legacy resources and other infrastructure services.
Flexibility. Most cloud-computing vendors don’t require contracts and let
users work... (more)
Provided below are two quotes, one from Larry Ellison of Oracle and one from
Andy Isherwood of HP (both from 2008 so maybe their perspectives have
changed). Not everyone, even those that would be serving this new Cloud
Computing environment, are convinced that Cloud Computing is a new and
improved way to do business. In fact, these two are claiming that they are
already doing it. Luckily for us, not everyone is of the same mindset as
these two but clients do have concerns and in some instances, rightly so.
“The interesting thing about Cloud Computing is that we’ve redefined