In cloud computing, the expansion in the cloud is a configuration that is established between a private cloud and a public cloud to address the maximum in the demand for IT. If an organization that uses a private cloud reaches 100% of its resource capacity, the overflow traffic goes to the public cloud, so there is no interruption of services.

In addition to the self-service functionality and flexibility, the key advantage for expanding in the cloud is economic savings. It only pays for additional resources when there is a demand for those resources. You do not have to spend more on additional capacity that you do not use or try to predict demand maximums and fluctuations.

Also, the expansion in the cloud can also be used to support processing loads by moving basic applications to the public cloud to free up local resources for business-critical applications.

When using extension in the cloud, consider security and compliance requirements, latency, load balancing, and platform compatibility.

Expansion of local data solutions to the cloud

The term hybrid cloud refers to a combination of the public cloud and data centers locally, to create an integrated IT environment that encompasses both.

Many organizations currently use the hybrid cloud as a path to migrate their entire data center to the cloud over time. Other organizations use cloud services to expand their existing local infrastructure.

A hybrid solution can be used in the following scenarios:

1. As a transition strategy during a long-term migration to a solution entirely native to the cloud.
2. When regulations or directives do not allow moving specific data or workloads to the cloud.
3. Disaster recovery and fault tolerance, by replicating data and services between the local and cloud environments.
4. Reduce latency between the local data center and remote locations, by hosting part of the architecture.

The storage of local data

Local data stores include databases and files. There may be regulations or directives that do not allow moving specific data or workloads to the cloud.

During a migration, you may want to keep some data in a local environment for some application that has not yet been migrated.

Considerations when placing data in a public cloud include:

1. The cost of storage is significantly less than the cost of maintaining a storage with similar characteristics in a local data center.
2. Elastic scaling. Planning and managing the growth of data capacity in a local environment can be challenging, especially when it is difficult to predict. This consideration is less relevant for applications that consist of relatively static size data sets.
3. Disaster recovery. Data stored in hybrid environments can be used to replicate between local and cloud data stores.

Expansion of data storage in the cloud

There are several options to expand the local data stores to the cloud.
One option is to have local replicas and in the cloud, to help achieve a high level of fault tolerance, but it may be necessary to make changes in applications to connect to the appropriate data warehouse in case of a failover. .

Another option is to move part of the data to cloud storage, while the most current or most accessed are maintained in a local environment.

This method can provide a more cost-effective option for long-term storage, as well as improve data access response times, since the operational data set is reduced.

A third option is to keep all data in a local environment, but use cloud computing to host the applications. To do this, you should host the applications in the cloud and connect them to the local data store through a secure connection.