IOStack: Software-Defined Object Storage

Citations Over TimeTop 10% of 2016 papers

Abstract

As the complexity and scale of cloud storage systems grow, software-defined storage (SDS) has become a prime candidate to simplify cloud storage management. Here, the authors present IOStack, the first SDS architecture for object stores (such as OpenStack Swift). At the control plane, the provisioning of SDS services to tenants is made according to a set of policies managed via a high-level domain-specific language (DSL). Policies can target storage automation or specific service-level agreement (SLA) objectives. At the data plane, policies define the enforcement of SDS services, namely filters, on a tenant's requests. Moreover, IOStack is a framework to build a variety of filters, ranging from general-purpose computations close to the data to specialized data management mechanisms. Experiments illustrate that IOStack enables easy and effective policy-based provisioning, which can significantly improve the operation of a multitenant object store.

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