Cloud Computing
Azure Cloud Computing:
Azure as a cloud computing solution provides services encompass:
- Server-based and end user-based computing services.
- Database services and analytics.
- Artificial intelligence.
- Networking.
- Infrastructure, and much more.
A hybrid cloud scenario: some of the organization’s IT resources remain on site in their own data center, whereas other resources are hosted in Azure, and services interact between the two environments.
Benefits of Cloud Computing:
Economic Benefits:
With Azure, Microsoft handles the capital expenditures (CapEx) necessary to maintain and grow the service. An organization using Azure services therefore eliminates those yearly (CapEx), and replaces them with operational expenditures (OpEx), which are monthly expenditures that the organization uses to run its operation.
Scalability and Elasticity:
Enable you to scale your Azure services to meet changes in demand, adding resources when needed to meet increased demand and scaling back as demand decreases, with associated changes in cost.
Horizontal scaling adds additional resources when they are needed and removes them when they are no longer needed.
Vertical scaling adjusts the capacity of existing resources to accommodate demand changes.
Automatic scaling, called elasticity, enables Azure to scale resources for you without interaction. Resources can be scaled automatically based on CPU usage, memory usage, storage usage, and so on.
High availability (HA):
Describes a system that is available for use without significant outages and that is generally backed by a service level agreement (SLA).
Fault Tolerance:
Describes a characteristic of a system that enables it to continue functioning when one or more components of the system fails through redundancy and load balancing.
Disaster Recovery:
Fault tolerance generally applies at the component level of a service. For example, adding a second web server, Disaster recovery refers to the process of recovering from a situation where multiple systems or services fail.
A company’s primary data center is hit by a tornado, destroying all the IT infrastructure and services hosted at that location.
Many organizations are turning to Azure to not only provide a higher level of fault tolerance than they could otherwise implement on-premises, but to implement a disaster recovery environment in Azure for their on-premises systems. Other organizations are turning to Microsoft Azure to host all of their IT services, with no on premises IT infrastructure at all, to attain a high level of flexibility, elasticity, fault tolerance, and disaster recovery.
Human Resources:
The indirect consequence of outsourcing IT infrastructure and services to a cloud provider like Microsoft always has some effect on the IT staff who are managing the infrastructure and services that move to the cloud.
Staff reduction: Outsourcing to a cloud provider can potentially reduce the number of IT staff you need to manage those services because Microsoft manages some, if not most, of the infrastructure and services.
Staff repurposing: Staff can focus on optimizing the services hosted in the cloud, rolling out new services, and in general playing more strategic technology role for the business.
Staff increase: It’s also possible in some scenarios that an organization will need more IT staff as they transition to the cloud. New services can mean additional staff to direct and manage those services.
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