Cloud Types
Public Cloud
Public cloud describes cloud computing in the traditional mainstream sense, whereby resources are dynamically provisioned to the general public on a fine-grained, self-service basis over the Internet, via web applications/web services, from an off-site third-party provider who bills on a fine-grained utility computing basis.
The best implementation is the Internet itself. Everyone has access and it is a great way to share, market and learn. Others such as Facebook, Twitter and Linked-in can also be catagoized as public.
Community cloud shares infrastructure between several organizations from a specific community with common concerns (security, compliance, jurisdiction, etc.), whether managed internally or by a third-party and hosted internally or externally. The costs are spread over fewer users than a public cloud (but more than a private cloud), so only some of the benefits of cloud computing are realized.
One of the earliest and most popular examples is Google Docs. Most of the uses are account create to share inforamtion with internal or closely aligned external entities. Usage for a limited about of data (2-5 gigabytes) and users (1-5 accounts) are usually free or cheap.
Hybrid Cloud
Hybrid cloud is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together, offering the benefits of multiple deployment models.
This is what is coming to market now and we beleive that many are not new offerings, but public or community with a new name. Look at all the information here, check out the summary table at the bottom and please start asking questions with however you are considering.
Private Cloud
Private cloud is infrastructure operated solely for a single organization, whether managed internally or by a third-party and hosted internally or externally.
They have attracted criticism because users "still have to buy, build, and manage them" and thus do not benefit from lower up-front capital costs and less hands-on management, essentially "[lacking] the economic model that makes cloud computing such an intriguing concept".
The eariest implementations were for companies internal or "intranet" sites. These were created for the internal use by employees of the company and only accessible while on the company network.
Summary, Is the cloud a new idea?
As is most things in life, much of a new idea is the compilation of many pieces of existing ideas with a few new pieces added in. The new pieces of the Cloud are really some new technology and the wide spread availability of high speed internet access. There are many question that need to answered before a Cloud decsion is made. We are here to help you with all the issues and will create a customized solutions based on your needs.
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