[1] OpenIO was founded in 2015 by Laurent Denel (CEO), Jean-François Smigielski (CTO) and five other co-founders; it leveraged open source software, developed since 2006,[2] based on a grid technology that enabled dynamic behaviour and supported heterogenous hardware.

[3] In July 2020 OpenIO had been acquired by OVH[4] and withdrawn from the market to become the core technology of OVHcloud object storage offering.

[7] OpenIO stores objects within a flat structure within a massively distributed directory with indirections, which allows the data query path to be independent of the number of nodes and the performance not to be affected by the growth of capacity.

[11][12] The software has a feature that catches all events that occur in the cluster and can pass them up in the stack or to applications running on OpenIO nodes.

[15] The benchmark scenario, conducted under production conditions with standard hardware (commodity servers with 7200 rpm HDDs), consisted in backing up a 38 PB Hadoop datalake via the DistCp command.