Public Clouds

Showing 2 of 117 total public clouds

 

Microsoft Azure

4 out of 5 stars( 1 review ) Rate this Cloud
  • Storage
  • Content Delivery (CDN)
  • Platform (PaaS)
  • Database
  • Messaging

Microsoft is a late arrival to the cloud market, but is now dedicating significant resources to their Azure cloud services. Azure offers a .NET Platform, Storage, CDN, SQL Server Database and Messaging services, all available with on-demand pricing.

Google

5 out of 5 stars( 2 reviews ) Rate this Cloud
  • Storage
  • Platform (PaaS)

Google offers an assortment of cloud services including the AppEngine Platform and the Google Storage service. Google is very innovative and aggressive in this market and offers generous free usage allocations for these services and paid upgrade options.

 

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Public Cloud Requirements:

  • On demand provisioning and deprovisioning
  • Usage-based pricing
  • Published API

What are these?

The National Institute of Standards and Technology (NIST) defines 3 cloud computing service models:

  1. Infrastructure as a Service (IaaS): Capability to provision processing, storage, networks, and other fundamental computing resources
  2. Software as a Service (SaaS): Capability to use the provider's applications running on a cloud infrastructure
  3. Platform as a Service(PaaS): Capability to deploy consumer-created or acquired applications created using programming languages and tools supported by the provider

Each of the cloud services shown on this screen falls into one of these service models:

IaaS

  • On-demand self-service: The consumer alone can request computing resources which are automatically provisioned without any human interaction
  • Storage: Upload and manage files in a web accessible storage system
  • Content Delivery: Distribute content over the Internet using a provider's route optimized network of geographically disperse edge servers

SaaS

  • Databases: Store application data in a provider's fully managed database system
  • Messaging Queues: Use a provider's fully managed messaging system to send and receive application messages using the Internet

PaaS

  • Platforms: Create and deploy Internet software using a provider's fully managed application deployment platform

http://csrc.nist.gov/groups/SNS/cloud-computing/

What is cloud computing?

The National Institute of Standards and Technology (NIST) defines cloud computing as: "A model for enabling convenient, on-demand access to a shared pool of configuration computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction." Our definitions for the 5 essential characteristics of cloud computing defined by NIST are:

  • On-demand self-service: The consumer alone can request computing resources which are automatically provisioned without any human interaction
  • Broad network access: APIs and management tools are provided by the vendor allowing computing resources to be requested over the Internet
  • Resource pooling: Computing resources are pooled to service multiple consumers using a multi-tenant model, with resources dynamically assigned according to consumer demand
  • Rapid elasticity: To the customer, compute capabilities appear unlimited and can be rapidly and elastically provisioned both scaling up and back down per customer need
  • Measured service: Use of compute resources is monitored and tracked by the provider. Customers are billed based on a utility consumption model. There are no setup fees or contracts

http://csrc.nist.gov/groups/SNS/cloud-computing/

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