OSNexus | 917 followers on LinkedIn. OSNexus helps organizations manage and scale their storage environments with its QuantaStor platform. | OSNexus makes the QuantaStor™ industry-leading Software Defined Storage (SDS) platform. QuantaStor bare-metal installs on standard servers to deliver unified file, block, and object storage in a single platform. What makes QuantaStor unique is it's storage grid technology.