Cloud Infrastructure (IaaS)

Cloud Infrastructure represents the underlying layer of hardware and software that enables the delivery of cloud services: servers, storage, networking, and virtualization solutions. It is a complete stack that can exist in public, private or hybrid clouds, and is essential for models such as IaaS, PaaS and SaaS.

This model offers:

• Flexibility, allowing resources to be adjusted according to demand.
• Scalability, automatically responding to load peaks.
• Business continuity, with high availability and redundancy.

Infrastructure as a Service (IaaS) is a cloud computing model where IT infrastructure resources (such as servers, storage, and networks) are offered on demand, over the Internet, and paid for what is used. Instead of purchasing and managing physical hardware, businesses can lease these resources to a cloud service provider.​ 

1. Dynamic provisioning: through a web interface or API, companies ask for virtual servers, storage space and ad hoc network definition.
2. Virtualization and containerization: technologies such as hypervisors (VMware, KVM) or containers (Docker) isolate resources and optimize the use of hardware.
3. Pay-as-you-go model: Charged per CPU hours, GB stored, or network traffic consumed.
4. Shared management: the provider maintains and updates the physical infrastructure; the customer manages operating systems, middleware and applications.

IaaS allows deep control of the execution environment without the logistical drawbacks of on-premise.

• Public cloud: shared among several customers, ideal for agile and scalable projects.
• Private cloud: dedicated to a single organization, suitable for security and regulatory compliance requirements.
• Hybrid cloud: combines both, allowing you to handle applications with different needs in different environments.

• Cost reduction: eliminates investment in hardware and bases spending on real consumption.  
• High scalability: ideal for responding to variations in demand, without cost overruns.
• Greater agility: accelerates the deployment time of applications and development environments.
• Resilience: by having redundancy and recovery from failures.
• Professional security: suppliers guarantee protection, updates and legal compliance.

• DevOps environments and testing: Assemble test environments in minutes, delete them, and create a new one without shortcuts.
• Big Data Analytics and High Performance Computing (HPC): Managing Large Loads Without Investing in Internal Supercomputers.
• Secure migration: move applications from on-premises infrastructures to the cloud with less complexity.
• Professional web hosting: high-traffic sites that require control and stability without bottlenecks.
• Backup & Recovery: Store data in multiple locations with minimal administrative effort.

• Hypervisors and containers: VMware, KVM, Hyper-V, Docker; essential for creating virtual machines or containers.
• Orchestrators: OpenStack or Apache CloudStack automate provisioning and scalability.
• Protocols and APIs: allow integration with centralized management tools.
• SLAs and certifications: most include service agreements (SLAs) that ensure time and quality.

Ilimit offers 100% managed Cloud IaaS infrastructure, with:

• 24×7 monitoring and maintenance, ensuring continuous availability.
• Expert team, which is in charge of installation, management and technical support.  
• Secure migrations, having moved critical systems such as those of the Vocento Group to its private platform with great success.  
• Strong focus on security and regulatory compliance, adapted to the Spanish and European environment.
• Local attention from Barcelona and offices in Catalonia, providing proximity and understanding of market challenges.

Comparative	IaaS	PaaS	SaaS
Control	High (SO, applications)	Medium	Low
Agility ​	Very high	High	Average
Hardware support	External	External	Fully external
Maintenance	Shared	Shared	100% supplier
Typical use	DevOps, HPC, web, backup	Agile development	Business tools

IaaS offers the perfect balance of control, flexibility, and efficiency, while PaaS and SaaS are more restrictive in terms of managing the underlying stack.

Ilimit's Cloud IaaS Infrastructure represents a solid solution for companies in digitization phases, growing startups, or firms that need robust and scalable environments without the barriers of access to hardware.

Thanks to a pay-per-use model, high availability, and a specialized local team, Ilimit simplifies the complex, allowing you to focus on the evolution of your business without worrying about the operational aspects of the infrastructure.