You will get cloud computing services from data centers; so, before you make a move to the cloud, it is imperative to check the data center infrastructure you will be entitled to. This is because the data center facility is really the foundation for any cloud computing model. For instance, the Tier IV category of data centers are considered to be best suited for cloud hosting purposes. They have the necessary redundancy and resilience to faults which will guarantee a high network uptime and minimize data loss. When data loss can be eliminated and high uptime can be ensures, you can improve cloud service availability.

Today the growing interest among people in cloud computing has led them to build various infrastructure models and application platforms. In cloud computing resources can be dynamically obtained; these resources are then made available to the people across the Internet. So, businesses can access cloud hosting services and get resources as and when they need these to cater to their IT requirements. Businesses can get Platform as a Service or PaaS, Software as a Service or SaaS and Infrastructure as a Service or IaaS. They can also choose from three distinct cloud computing models, namely private cloud, public cloud and hybrid cloud.

The infrastructure in the cloud can be scaled up and down depending on usage. Businesses prefer shifting their data to the cloud to take advantage of cost savings. In the cloud, you can cut down on hardware costs and operational costs because the whole IT infrastructure is outsourced. So, before you shift to the cloud, you should ideally understand the set up of the data centers which will deploy the cloud model. The main areas which need to be investigated in this respect are the infrastructure, redundant connections, uptime guarantee, Service Level Agreements and services.

- Where cloud computing is concerned, the underlying data center set-up is of utmost importance because as your business expands, the infrastructure will have to be able to cater to the higher demands of traffic. With the rise in the numbers of online transactions by both individuals and businesses, you need a cloud architecture that is designed and equipped to handle very high volumes of data storage and processing. For instance, there are cloud providers which will offer private clouds with robust security measures because these businesses have very strict data privacy laws.

- By redundancy is meant the degree of resilience which the data center facility can guarantee. Data centers are categorized into Tiers, ranging from Tier I to Tier IV depending on their power supplies and capacity to resume operations in the event of disasters or server crashes. So, you will need a cloud provider which can manage mission critical data and its data center infrastructure cannot experience systems failure. So, data centers should ideally be Tier IV data centers which have sufficient backup power provisions that can guarantee zero downtimes. These Tier III data centers can also successfully respond to system crashes so that there is no downtimes and data loss.

- Connectivity implies the way components within the data center are connected to one another. So, the cloud vendor you choose should have excellent network connectivity; this factor will include components like routers, switches, backbone networks and gateways. To be able to back multiple virtual machines in a data center, the infrastructure must offer flexible, reliable and safe data transfers.

- The reliable cloud vendors will have Tier III data centers which can guarantee fault resilience and a 99.95% uptime. This is stated in their Service Level Agreement and businesses must review its terms first before signing on the dotted line. Businesses can choose resources which they need and review the corresponding SLA terms in connection with each of these resources. So, there should not be any scope of ambiguity between users and cloud service providers.

- Finally, cloud services will become available only when data centers are secure. So, reliable data centers will have effective firewalls and intrusion detection mechanisms to eliminate chances of attacks. This will in turn ensure that the cloud computing model is also completely secure. Besides, those using reliable cloud providers can also enjoy additional benefits in the form of automated monitoring, zero downtimes, UI for resources etc.

In this way, data centers are basically the foundation for cloud hosting services. they offer the underlying set-up needed for cloud deployment. They contain hundreds of servers, switches and routers, storage hardware and other components for virtualization. Businesses are keen to get cloud hosting because it is cost-effective, affordable and highly scalable. Both small and large businesses can benefit from quality cloud hosting plans. The greatest benefits are in terms of efficiency and speed which helps to boost business value.

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