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Frequently Asked Questions

What does SCS stand for?

The Sovereign Cloud Stack (SCS) provides standards for a range of cloud infrastructure types. It strives for interoperable and sovereign cloud offerings which can be deployed and used by a wide range of organizations and individuals.

Who is SCS intended for?

SCS is a Software Stack to power data centers of different scale. It empowers public or private cloud service providers to offer resources to their endusers.

Who or what is behind SCS?

SCS is run by the SCS Project Team which is based at the Open Source Business Alliance e.V. and 100% funded by the German Ministry of Economics and Climate Action (BMWK). Public money means public code.

Why is there a need for a standardized cloud environment?

A standardized environment promotes interoperability, reduces vendor lock-in, and facilitates smoother transitions between providers. It gives individuals, companies and public institutions the freedom of choice.

Where can I find the SCS standards?

The SCS standards are available on the standards pages within our documentation page. Find them here

How is the SCS different from other cloud environments (e.g. AWS, Azure,...)?

Unlike proprietary clouds, SCS emphasizes standardization, ensuring interoperability and reduced dependency on one provider.

My company already has a cloud environment. Can we still use the SCS?

Yes, SCS can complement existing environments, enhancing standardization and interoperability.

What does reference implementation mean?

Reference implementation is a concrete example or blueprint of how the SCS standards can be implemented.

Do I need to use the reference implementation to be SCS compliant?

No, while the reference implementation is a guide, compliance requires adhering to SCS standards, not the exact blueprint of the reference implementation. Check the standards page on how to be SCS-compatible

Do I have to use all layers of the reference implementation (IaaS, CaaS)?

No, you can choose layers based on your needs and still be SCS compliant.

What does IaaS mean?

IaaS stands for Infrastructure as a Service, providing virtualized computing resources over the internet.

How is the IaaS layer structured?

IaaS typically comprises virtual machines, storage, and network resources, all offered as scalable services. Find the architecture here

What does CaaS mean? (Container Layer)

CaaS refers to Container as a Service, where providers offer container orchestration platforms.

I want to try out the SCS! Where do I start?

As a user:

  • Existing SCS Clouds: Explore and test on any of the cloud providers offering SCS. Choose one from here

As a Cloud Service Provider:

I want to use an SCS Cloud! How do I get started?

As a user:

As a Cloud Service Provider:

I want to use the SCS in my company and build my own cloud! Where do I start?

Start by understanding SCS standards and then move on to the reference implementation. Link to guide.

I have a technical problem. Where can I find help?

Refer to our support section or check our community channels for assistance. Link to community.