Forem: Leonardo Santos

Cloud deployment models

Leonardo Santos — Thu, 13 Jun 2024 01:11:09 +0000

public

Quick access to computing resources without a large upfront cost, with the public cloud, your company purchases virtualized computing, storage, and networking services from a cloud service provider over the public internet.

private

A private cloud is hosted in a data center and maintained by IT staff, this involves significant capital expenditure. Having your own private cloud also allows you to control how data is shared and stored. This is often the best option if cloud security is a concern, as you can manage data governance.

multicloud

By combining services from different cloud service offerings, multicloud offers more flexibility across different price points, service offerings, features and geographic locations.

hybrid

combines public cloud and private cloud environments, allowing data and applications to be shared between them.

What is cloud computing ?

Leonardo Santos — Wed, 05 Jun 2024 02:08:18 +0000

In simple words, cloud computing is delivery of resource, IT environments that enable on-demand services like computing, storage, networking, which can be accessed over the Internet using a cloud provider.

Advantages of Cloud Computing

Agility
Being able to implement technology services in a short time, being able to expand activities to new geographic regions.
Elasticity
You provision the amount of resources actually needed, being able to increase or decrease the amount of resources that will be needed.
Cost savings
Expenses are equivalent only to the IT consumed

Types of Cloud Computing

(IaaS) = infrastructure as a service
Instead of physically purchasing and managing servers, companies can rent these resources from a cloud provider such as: Virtual Servers, Operating Systems, Storage
(PaaS)= plataform as a service
Deliver development environments so that developers can create and manage applications. PaaS allows companies to focus on software development while the cloud provider manages the infrastructure. ex: azure, aws, heroku
(SaaS)= software as a service
software distribution where applications are hosted by a service provider and made available over the internet, and can be accessed via the web such as: netflix, google drive, dropbox

Before Cloud Computing

Leonardo Santos — Mon, 03 Jun 2024 14:45:35 +0000

Before cloud computing, companies had many difficulties regarding infrastructure and management, for example:

High infrastructure costs

Companies needed to invest a lot of capital in servers, data centers, hardware and software and also in the maintenance of this equipment and occasionally replacement.

data centers: buildings or physical installation that houses IT infrastructure for development

Lack of scalability

Before meeting growing demands was difficult and very expensive, adding servers or increasing storage capacity required weeks or months or significant investments

Maintenance Complexity

Data center maintenance required specialized teams to manage hardware and software, these employees had to be physically present on site or unreliable remote access solutions and this took a lot of time.

Limited Backup and Recovery Capacity

Local backups are subject to physical defects and local disasters, such as fires and heavy rains, which could cause irreparable data loss.