A Filesystem Built for the Most Demanding Workloads
FlexFS™ is purpose-built for I/O-intensive applications where throughput, cost, and scale all matter. From GPU training clusters to genomics pipelines, teams use flexFS to eliminate storage bottlenecks without changing their code.
Lower storage costs vs. EFS/FSx
POSIX compliant — zero code changes
Cloud backends — no vendor lock-in
Why Teams Choose flexFS
One filesystem that delivers on cost, scale, compatibility, and cloud freedom.
Scale Without Limits
Aggregate read throughput scales linearly with every mount client you add. No server bottlenecks. Exabyte-scale capacity.
Cuts Storage Costs 2-5x
Replace provisioned cloud filesystems like EFS and FSx with metered object storage. Pay only for what you store, not for idle capacity.
Zero Code Changes
Full POSIX compliance means flexFS is a drop-in replacement for NFS or Lustre. Your applications, scripts, and tools work unchanged.
Multi-Cloud Freedom
One filesystem interface for AWS S3, Google Cloud Storage, Azure Blob, and Oracle Cloud. No vendor lock-in. Switch clouds without touching applications.
Zero-Downtime Updates
Seamless session handoff lets you update mount clients without unmounting or interrupting running workloads.
Time-Travel Mounting
Mount any volume at any point in time, read-only. Built-in block retention enables auditing, recovery, and compliance without separate snapshot infrastructure.
End-to-End Encryption
AES-256-GCM encryption with Argon2id key derivation. Keys never leave your hosts — the metadata server, proxies, and storage never see plaintext.
Kubernetes Native
CSI volume driver with Helm chart deployment. Static and dynamic provisioning let pods mount object storage through standard PersistentVolumeClaims.
Scale Without Limits
Aggregate read throughput scales linearly with every mount client you add. No server bottlenecks. Exabyte-scale capacity.
Cuts Storage Costs 2-5x
Replace provisioned cloud filesystems like EFS and FSx with metered object storage. Pay only for what you store, not for idle capacity.
Zero Code Changes
Full POSIX compliance means flexFS is a drop-in replacement for NFS or Lustre. Your applications, scripts, and tools work unchanged.
Multi-Cloud Freedom
One filesystem interface for AWS S3, Google Cloud Storage, Azure Blob, and Oracle Cloud. No vendor lock-in. Switch clouds without touching applications.
Zero-Downtime Updates
Seamless session handoff lets you update mount clients without unmounting or interrupting running workloads.
Time-Travel Mounting
Mount any volume at any point in time, read-only. Built-in block retention enables auditing, recovery, and compliance without separate snapshot infrastructure.
End-to-End Encryption
AES-256-GCM encryption with Argon2id key derivation. Keys never leave your hosts — the metadata server, proxies, and storage never see plaintext.
Kubernetes Native
CSI volume driver with Helm chart deployment. Static and dynamic provisioning let pods mount object storage through standard PersistentVolumeClaims.
Trusted by Industry Leaders
Top organizations rely on flexFS for mission-critical workloads.
“Blew the competition out of the water!”
Principal Scientist
Top 10 Pharma
“We have projected savings of $8M over 3 years for cloud storage and computing costs.”
Director of Cloud Storage
Top 10 Pharma
“Our storage costs decreased by over 50% for this project, and we also improved performance and throughput. As a result, our computing costs also went down.”
Contractor
NASA
Works with your object storage
Start Free. Scale When Ready.
Get the Community Edition with full POSIX compliance, all cloud backends, and up to 5 TiB — free forever. Upgrade to Enterprise when you need encryption, proxy groups, and unlimited volumes.