Che cos'è l'infrastruttura come servizio (IaaS)?

IaaS stands for Infrastructure as a Service. Think of it as renting the basics of a computer system – servers, storage, and networking – from a cloud provider rather than buying and maintaining your own hardware. 

Think of it as affittare una cucina attrezzata piuttosto che costruirne una.

Esempi di fornitori IaaS: Amazon Web Services (AWS), Microsoft Azure e Google Cloud Platform (GCP).

I tre diversi tipi di servizi di cloud computing:

• IaaS (Infrastructure as a Service): Noleggi le basi (server virtuali, storage, networking) e poi costruisci le tue applicazioni e i tuoi sistemi su di esse.
• PaaS (Platform as a Service): Una piattaforma completa con strumenti e servizi per lo sviluppo, l'implementazione e la gestione delle applicazioni.
• SaaS (Software as a Service): Software applications for use over the internet, without installing or maintaining them yourself.

The difference between IaaS and SaaS is the amount of control and responsibility you have. With IaaS, you have more control and responsibility, whereas with SaaS, you have less.

IaaS is like renting a plot of land and constructing a house. PaaS is like renting an apartment. SaaS is like renting a furnished apartment.

IaaS offers such things as:

• Costo: Investments in hardware are not required, and maintenance costs are reduced.  Any investment in hardware becomes unnecessary, and ongoing maintenance costs are reduced; therefore, it is budget-friendly overall.
• Flessibilità: Choose your OS, software, and configurations.
• Availability: Access to redundant infrastructure assures your data and applications are available.
• Scalability: Scale resources up or down to meet changing demands.

This makes IaaS a way for companies to access computing resources without managing their own infrastructure.

IaaS è per: aziende con carichi di lavoro fluttuanti, startup e organizzazioni che devono distribuire applicazioni o testare ambienti.

IaaS è utilizzato da aziende e privati:

• Startup: lanciare e scalare senza investire in infrastrutture
• Grandi imprese: modernizzare la propria infrastruttura IT e ridurre i costi.
• Sviluppatori: configurare ambienti di sviluppo e test
• Chiunque: che ha bisogno di accedere a risorse di elaborazione.

While the provider oversees the infrastructure, you are responsible for the operating systems, applications, and data. This gives you more control but also requires more technical expertise.
If you lack the technical skills or resources to manage your own infrastructure, consider PaaS or SaaS solutions, which offer a higher level of abstraction. But if you need control over your environment and want to customize it, IaaS is recommended.