FlexSDS, It’s a software-only solution that runs on industry-standard hardware (any x86 based machines). It supports unlimited capacity per node and up to 2 PB of each storage pools. It could be external storage or HCI storage for private and hybrid cloud, by providing thin provisioning volume, log structured volume or RAW volumes, and export them over SAN protocol.
For working in private and hybrid cloud FlexSDS brings the ability to run any application at any scale, fast time-to-value, and non-disruptive scale-up or scale-out.

FlexSDS Key features for private and hybrid clouds include:
Support hardware through HDD to NVMe SSD (Kernel-bypass), through TCP to RDMA, fully support all-flash-array, HDD-array, and Hybrid-Array.
Fast deployment and scaling of storage resources, and dynamic workload scaling and balancing.
Designed for next generation hardware, kernel-bypass, lock-free model, zero-memory-copy, high CPU cache optimize to provide extreme low latency.
Parallel and high concurrent I/O technology and high utilization of storage and network resources.
Multiple node and data copies, high availability and auto-recovery.
Efficient asynchronous replication
Low total cost of ownership (TCO)
Single-pane management.
Supports up to 1024 server nodes and can offer block service to Windows Hyper-V, VMware vSphere, Citrix XenServer or KVM-qemu hypervisor.
Protocol supports: iSCSI, iSER, and NVMe over Fabrics
Unlimited space-optimized snapshots and clones, periodic or continuous asynchronous long-distance replication.