Cloud Storage

S3 Compatible

hot object storage S3 API compatibility

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IT professionals monitor secure, GDPR-compliant data storage in a European data center.

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(ex: Photo by

IT professionals monitor secure, GDPR-compliant data storage in a European data center.

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(ex: Photo by

IT professionals monitor secure, GDPR-compliant data storage in a European data center.

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Maximise Performance and Sovereignty with Always-Hot Object Storage and Full S3 API Compatibility

05.08.2025

8

Minutes

Thomas Demoor

CTO Impossible Cloud

05.08.2025

05.08.2025

8

Minutes

Thomas Demoor

CTO Impossible Cloud

Complex storage tiers create unpredictable costs and critical restore delays. An always-hot object storage model with 100% S3 API compatibility eliminates these risks entirely. Discover a sovereign, enterprise-ready EU alternative designed for performance.

Key Takeawys

An 'Always-Hot' storage model with full S3 API compatibility eliminates retrieval latency and hidden fees associated with tiered storage, reducing operational complexity.

Sovereign-by-design architecture with EU-only data centers and geofencing ensures GDPR compliance and immunity from foreign laws like the CLOUD Act.

Immutable backups using S3 Object Lock provide robust ransomware protection by making data unchangeable via a write-once-read-many (WORM) model.

Many EU decision-makers now demand sovereign solutions for their critical data infrastructure. Yet, concerns over performance parity and migration complexity often slow the move away from established providers. True hot object storage S3 API compatibility solves this by protecting existing investments in tools and scripts, ensuring a zero-rewrite migration. By combining this with an “Always-Hot” architecture, businesses can eliminate the fragile tiering policies that cause API timeouts and hidden restore fees. This approach delivers the cost transparency and data security over 80% of organizations seek, making digital sovereignty a practical reality.

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Achieve Seamless Integration with Advanced S3 API Compatibility

True hot object storage S3 API compatibility extends far beyond basic operations. It ensures your existing applications and data pipelines continue to function without code rewrites, supporting advanced capabilities like versioning and lifecycle management across any API, CLI, or SDK. This protects at least 95% of your prior technology investments. Full compatibility minimizes migration risk and preserves operational continuity from day one. Our S3 compatible storage is engineered to handle millions of objects with consistent performance. This foundation allows your teams to focus on innovation instead of integration challenges.

Eliminate Latency with an Always-Hot Storage Architecture

Complex tiering models introduce operational fragility, with over 15% of cloud bills often containing hidden retrieval fees. An “Always-Hot” object storage model ensures 100% of your data is immediately accessible, eliminating restore delays and API timeouts entirely. This architecture provides the strong read/write consistency needed for mixed workloads, from millions of small files to large archives. This model reduces operational complexity by at least 30% by removing brittle lifecycle policies. Explore the benefits of our always-on data access. This approach guarantees predictable latencies, keeping your third-party tools stable and performant.

Guarantee Availability with a Resilient, Sovereign Architecture

Our architecture is built for consistency and scale, using multi-AZ replication to eliminate single points of failure. We operate exclusively in certified European data centers, providing country-level geofencing to keep your data within predefined regions under strict EU rules. This design ensures you avoid CLOUD Act exposure, a key criterion for over 84% of EU organizations. This sovereign-by-design approach guarantees EU legal certainty for all your workloads. Learn more about our secure object storage. This ensures your data integrity is maintained under the most demanding hybrid and analytic workloads.

Defend Against Ransomware with Immutable Object Storage

Immutable storage with S3 Object Lock provides a powerful defense against ransomware. It uses a write-once-read-many (WORM) model to make critical backup data unchangeable for a defined retention period, neutralizing encryption-based attacks. This feature is a core component of a modern 3-2-1 backup strategy, ensuring at least one copy of your data is tamper-proof. Object Lock is the industry standard for protecting data from both malicious and accidental deletion. We offer robust S3 storage alternatives with built-in security. This proactive stance is essential for maintaining business continuity in a landscape of increasing threats.

Ensure Future-Proof Compliance with EU Data Act and NIS-2 Readiness

Forthcoming EU regulations demand a new level of data governance. Our platform is designed for compliance with key 2025 mandates. Here is how we align with these new standards:

  • EU Data Act (Sept 2025): We ensure data portability by design, allowing you to export all data, metadata, and versions via the standard S3 API, eliminating lock-in.

  • NIS-2 Directive: Our continuous security processes, including vulnerability management and supply chain assurance, are baked into our operations, not added as an afterthought.

This readiness provides a competitive advantage for regulated workloads. Our cost-effective S3 storage helps you meet these requirements without complexity. This proactive compliance simplifies audits and reduces regulatory risk.

Drive Partner Growth with Predictable Economics and Tooling

For MSPs and resellers, predictable margins are essential for building profitable services. Our channel program is built on a transparent economic model with zero egress fees, no API call costs, and no minimum storage durations. This allows partners to build BaaS and archiving services with up to 40% more predictable margins. Our partner-ready console offers multi-tenant management, RBAC, and automation via API/CLI. We are expanding local access for our partners, with distribution now available through api in Germany and Northamber plc in the UK. This growing ecosystem, including our collaboration with backup leader NovaBackup, provides the tools for success.

Execute a Low-Risk Migration in Three Steps

Migrating to a new storage platform should be straightforward and risk-free. Thanks to our full hot object storage S3 API compatibility, the process requires just a few configuration changes. Follow these three steps for a seamless transition:

  1. Update Connection Endpoints: Change the S3 endpoint in your existing backup software, scripts, or applications to the new Impossible Cloud URL.

  2. Synchronise Access Policies: Replicate your existing IAM roles and bucket policies using our console or CLI to ensure consistent permissions.

  3. Conduct a Test Restore: Perform a small-scale data restore to validate the configuration and confirm data integrity before switching over production workloads.

This entire process can often be completed in under 60 minutes. Our experts are available to guide you through each phase. This simple path forward makes it easy to realise the benefits of S3 object storage without disruption.

Migrating to a new storage platform should be straightforward and risk-free. Thanks to our full hot object storage S3 API compatibility, the process requires just a few configuration changes. Follow these three steps for a seamless transition:

  1. Update Connection Endpoints: Change the S3 endpoint in your existing backup software, scripts, or applications to the new Impossible Cloud URL.

  2. Synchronise Access Policies: Replicate your existing IAM roles and bucket policies using our console or CLI to ensure consistent permissions.

  3. Conduct a Test Restore: Perform a small-scale data restore to validate the configuration and confirm data integrity before switching over production workloads.

This entire process can often be completed in under 60 minutes. Our experts are available to guide you through each phase. This simple path forward makes it easy to realise the benefits of S3 object storage without disruption.

FAQ

Is your object storage truly 100% S3 compatible?

Yes. We provide full S3 API compatibility, which means your existing applications, command-line tools, and SDKs will work without modification. This includes advanced features like versioning, lifecycle management, and object tagging.



Are there any hidden fees for data access or API calls?

No. Our pricing is transparent and predictable. We charge for storage capacity only, with no egress fees, no API call costs, and no minimum storage durations. This allows you to forecast your budget accurately.



How do you ensure my data stays within a specific country?

We operate exclusively in certified European data centers and offer country-level geofencing. This allows you to restrict your data to a predefined region, such as Germany, ensuring it remains under local jurisdiction and compliant with EU regulations.



Can I use Impossible Cloud for my Veeam or other backup software?

Absolutely. Our platform has out-of-the-box integrations with leading backup tools. Because we offer full S3 API compatibility and Object Lock, you can easily configure Impossible Cloud as a secure, immutable backup repository.



What happens if I need to move my data to another provider?

We believe in data freedom and are compliant with the principles of the upcoming EU Data Act. You can move your data at any time without penalty, as we have zero egress fees and use open standards to prevent vendor lock-in.



How does your 'Always-Hot' model compare to cold storage tiers?

Our 'Always-Hot' model provides immediate access to all data, eliminating the delays and retrieval fees associated with cold storage. This simplifies architecture, improves restore times, and makes costs predictable, which is critical for backup and disaster recovery.



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Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.

Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.

Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.