Compliance-Ready Backup Storage with iCAS FS – Secure, Scalable, and Ready for Every Challenge

  • Immutability: Data cannot be modified or deleted within a defined retention period.
  • Synchronous & Asynchronous Replication: At least two storage targets that are physically separated from each other.
  • Minimized Attack Surface: Closed architecture & hardened Linux operating system - fully managed by iTernity.
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GDPR-compliant archiving

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Customers worldwide

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ISV applications

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Years of experience

iCAS FS: The Secure Foundation for Resilient Backup Strategies

Data volumes are growing exponentially, threats are increasing, and compliance requirements are becoming stricter. At the same time, IT departments have fewer resources at their disposal. In this environment, the right backup storage is crucial for how well a company is prepared for attacks, failures, and crises.

Our backup storage iCAS FS was developed to make backup data independent, tamper-proof, and available long-term, thereby creating the foundation for a reliable system restart. The platform combines modern security technologies, true immutability, flexible scalability, and low operational effort in one integrated solution.

As an on-premises backup storage solution, iCAS FS offers maximum data sovereignty and full control within your own data center. Backup data is stored in a GDPR-compliant and audit-proof manner. It remains auditable and sovereign throughout its entire lifecycle – a decisive advantage for critical infrastructure (KRITIS), healthcare, finance, and industrial companies.

Why modern backup storage is essential

Today, data is one of a company’s most critical resources. If systems fail or data is corrupted, backup storage must ensure that recovery processes function quickly, cleanly, and reliably.

Robust backup storage does not prevent attacks – but it ensures that companies remain capable of acting in an emergency and can restore their data quickly and reliably.

Typical causes of data loss include:

Human error

Defective systems or storage media

Ransomware and malware attacks

Natural disasters or building damage

Power outages

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Resilient Backup Storage – How iCAS FS Protects Your Data

When cyberattacks target production systems and backups simultaneously, you need backup storage that cannot be manipulated. iCAS FS combines immutability, recoverability, and scalability in one platform, ensuring that clean data versions remain available even in an emergency.

Thanks to its extensive features, iCAS FS serves as the final but decisive line of defense against modern cyberattacks:

Replication & 3-2-1-1-0 Compliance Even complex backup strategies can be easily implemented with iCAS FS.
Immutable Data Storage WORM and S3 Object Lock reliably secure backup data against ransomware, insider risks, and accidental deletion.
Data Integrity Protection iCAS FS automatically detects errors, continuously monitors data integrity, and independently restores data when necessary.
Hardened Linux Operating System Reduced attack surface thanks to closed architecture, no unnecessary services, and high stability.
Protected Versioning Every change creates a new version – perfect for fast and clean restores.
Fast Recoverability iCAS FS enables fast restores – even for large data volumes – supporting the achievement of demanding RTO targets.
Compatible with Leading Backup Software Solutions The platform is validated for Veeam, Commvault, Veritas, and other backup systems – for smooth integration and maximum performance.
Scalability Without Interruption Scale-out cluster - new nodes can be added during operation without migrations or downtime. Performance and capacity grow linearly, ensuring predictable cost development.
Relieving the IT Department Thanks to the managed storage concept, iTernity handles monitoring, patching, updates, and capacity planning – significantly reducing operational effort.
Multi-Workload Storage
 In addition to backups, iCAS FS is equally suitable for archiving, compliance data, or medical data – securely separated and centrally managed.
Auditability & Compliance by Design iCAS FS stores backup data in an audit-proof, auditable, and GDPR-compliant manner. Through immutable storage, clear policies, and full traceability, the platform meets the highest regulatory requirements.
Operated On-Premises for Maximum Control iCAS FS is operated by us in your own data center. This allows you to maintain full data sovereignty, avoid cloud dependencies and egress costs, and meet strict data protection and sovereignty requirements.
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In short: Backup storage that withstands attacks. And grows with your company.

Because iCAS FS offers companies backup storage that:

  • withstands even modern cyberattacks,
  • protects data immutably throughout its entire lifecycle,
  • relieves IT teams and simplifies processes,
  • scales flexibly with data growth, and
  • remains a secure long-term investment.

iCAS FS is the backup storage platform for companies that refuse to compromise on security, compliance, and availability.

Immutable, scalable, hardened, automated, and perfectly integrable: iCAS FS protects your backups, reduces complexity, and ensures maximum digital resilience.

Compatible with Leading Backup Solutions

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What our customers say

"Only with iCAS FS are we able to securely preserve our artworks, such as videos, photographs, and digitized works. None of the alternative solutions evaluated could guarantee comparable flexibility, performance, and security."

Kerstin Mürer

Head of Restoration Department, Kunsthaus Zürich

"Thanks to the architecture of iCAS FS, we have had even less effort with archiving and storage since the switch. Since completing the data migration, we have handed over responsibility for it almost entirely to iTernity."

Andreas Naumertat

Team Lead Server/Storage/Backup, University Hospital Dresden

"Since its introduction, we have had almost no effort with iCAS FS. iTernity manages the solution better than any hospital employee – a major advantage and an enormous reduction in workload."

Andreas Gürth

Team Lead Infrastructure, Municipal Hospital Karlsruhe

"By using iCAS FS, we were able to reduce our storage costs by 60%. The cost advantages result primarily from iTernity's software-based architecture and the managed services approach."

Christian Zellermayer

Deputy Head of IT Department, AUVA

"The biggest advantage of iCAS FS is that, thanks to Managed Storage Services, we no longer have any effort with data archiving. Data is archived in an audit-proof and stable manner."

Sören Peters

IT Specialist for System Integration, Hanau Hospital

Ransomware Hits Critical Infrastructure

A prominent example shows how crucial reliable backup storage is today: A large German hospital group had to take its IT systems offline as a precaution after a ransomware attack.

The effects were felt immediately:

  • X-ray and laboratory processes came to a standstill at times.
  • Diagnostics were significantly delayed.
  • Internal communication was restricted.
  • Hospital operations had to be switched to manual processes.

The case illustrates how dependent critical infrastructure (KRITIS) facilities are on functioning backup storage. Only immutable, tamper-proof backup copies enable a fast and controlled recovery.

In such scenarios, immutable, auditable backup storage determines whether systems are available again within hours or only after days.

Immutable backup copies enable a faster and more controlled recovery in an emergency.

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Would you like to learn more about how you can protect your backups from ransomware attacks?

Our free Backup Guide shows why ransomware attacks are one of the biggest threats to companies, hospitals, and public institutions worldwide and how you can reliably protect your backup storage from professional cyberattacks.

Download the Backup Guide Now

How to Protect Your Backups from Ransomware

With a backup, you are protected against data loss and ransomware – right? Unfortunately, cybercriminals also know that backups are the last line of defense… and they strike exactly there. Protect your backups with iCAS FS and additionally ensure more efficiency, simplicity, and flexibility in data storage.

Why do customers choose ransomware-proof backup with iTernity?

Over 1,200 companies and organizations from the industrial, healthcare, energy, pharmaceutical, research, and public sectors already trust iTernity’s expertise, as we have specialized in secure, long-term, and audit-proof data storage for over 20 years. Our solutions are software-based, vendor-independent, and flexibly scalable.

20+ Years of Expertise

More than 20 years of expertise in secure and auditable data archiving.

Data Protection Compliant

German software and operation according to European data protection requirements.

Predictable Costs

Predictable cost structures instead of unpredictable operational expenses.

No Loss of Control

Relieving the IT department without losing control.

Scalable During Operation

Scalability without operational interruption

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Do you have questions or would you like to contact us?

+49 761 59034810

info@iternity.com