Who uses hybrid cloud computing services, and why?
Mid to large corporate and government entities implement a hybrid cloud to optimize business agility and efficiency, and gain competitive advantage.
In a traditional IT environment, application software and the supporting hardware is procured, managed, and funded in silos, and generally implemented over a period of months. Cloud computing enables access to a variety of IT resources in minutes to hours and aligns costs to actual consumption. A hybrid cloud is the most flexible and cost-effective cloud computing model, combining what the internal IT department does best with the capabilities of external IT providers.
By enabling the organization to initiate projects faster, capitalize quickly on new capabilities and revenue opportunities, and respond nimbly to market changes, moving to a cloud infrastructure elevates IT from cost center to strategic partner.How a hybrid cloud works
A hybrid cloud is a combination of both public and private clouds and changes the role of the IT department from exclusive provider to "broker" of IT services, with these common characteristics:
In the public cloud, IT resources are owned and managed by a third party service provider, shared across customers, and accessed via the Internet. High economies of scale can keep costs low, but transparency and control are also low. As a result, the public cloud is often utilized for non-mission critical applications and non-sensitive information.
In the private cloud, IT resources are owned and dedicated to a single organization, shared across it, and delivered as a service via the Internet or LAN. While lower than the public cloud, economies of scale and cost savings are significant, transparency and control are high, and multi-tenancy concerns are eliminated. Thus mission-critical applications and sensitive information often reside in the private cloud.
Some applications may reside in both public and private cloud environments, with the public cloud serving as an on-demand extension of the private cloud to handle peak loads or provide disaster recovery. In more complex configurations, select data moves back and forth, such as between a customer relationship application in the public cloud and a financial application in the private cloud.
Tools can be utilized to manage resources across environments. For example, tools from VMware provide a unified view of virtual machines (VMs) in the private cloud and VMs running in the public cloud, as well as enable administrators to move VMs between clouds.Benefits of a hybrid cloud
A hybrid cloud provides numerous benefits to include:
- Faster IT implementation and time to value
- Optimal use of IT resources and IT spend
- Anywhere access to applications, desktops, and information
- Rapid scalability or re-allocation as demands change
- Lower energy, infrastructure, and facility costs
- Greater IT staff productivity and across organization
Enhanced security and protection of information assets