H2020 IOStack

This document presents the release version of the IOStack toolkit by providing a global view of its building blocks and their integration. We also present the achievements of the IOStack toolkit in the form of Key Performance Indicators (KPIs) and how these KPIs impact and are exploited by use-case companies. In addition, this deliverable provides an in-depth description and experimental evaluation of Crystal: the SDS building block for object storage. Finally, we also present experimental results on how the IOStack architecture is a substrate to develop coordination strategies between compute/storage components that optimize complex analytics workloads.