Community Edition
Free of charge. A single volume (up to 5 TiB / 5M files) with full POSIX compliance, all four cloud backends, local on-disk caching, Kubernetes static provisioning, and all CLI utilities.
Welcome to flexFS™
FlexFS is a high-performance network filesystem that provides POSIX-compatible access to Amazon S3, Google Cloud Storage, Azure Blob Storage, and Oracle Cloud Infrastructure Object Storage. Applications read and write files using standard filesystem calls — flexFS handles block storage, caching, encryption, and replication transparently. Mount clients access storage directly, so aggregate throughput scales linearly with the number of clients.
Community Quick Start Free -- single volume, up to 5 TiB
Enterprise Quick Start Unlimited volumes, end-to-end encryption, proxy groups
Compare Editions Full feature comparison table
Architecture How flexFS works under the hood
Architecture at a Glance
Section titled “Architecture at a Glance”
Two Editions
Section titled “Two Editions”Enterprise Edition
Unlimited volumes, end-to-end encryption, proxy groups for CDN-like caching and hybrid deployments, dynamic Kubernetes provisioning, and full administrative control via configure.flexfs.
Key Capabilities
Section titled “Key Capabilities”Elastic Throughput
Mount clients access storage directly — aggregate throughput scales linearly with the number of clients.
Proxy Groups
CDN-like caching layer with automatic RTT-based selection, rendezvous hashing, and writeback caching for hybrid cloud deployments. (Enterprise)
Time Travel
Mount any volume at a specific point in time using --atTime. Read-only access to historical data for auditing, recovery, and compliance.
Zero-Downtime Updates
Mount clients auto-update in place with a seamless FUSE session handoff — no unmount, no interruption, no data loss.
End-to-End Encryption
AES-256 encryption with Argon2id key derivation. Encryption and decryption happen on the client — keys never leave the host. (Enterprise)
Four Cloud Backends
Amazon S3 (and S3-compatible stores), Google Cloud Storage, Azure Blob Storage, and Oracle Cloud Infrastructure Object Storage.
Kubernetes Native
CSI volume driver with Helm chart for dynamic and static provisioning. Mount flexFS volumes directly into pods.
Full POSIX Compliance
ACLs, extended attributes, file locking, hard links, symlinks, and special files. Drop-in replacement for traditional network filesystems.