DSoD

DSOd is an acronym encountered in discussions of distributed object storage and systems design. In many proposals, it stands for Distributed Storage Object daemon, a software component responsible for managing storage objects and metadata across a cluster in a fault-tolerant manner. DSOd is often positioned as a conceptual evolution of traditional object storage daemons, emphasizing automated placement, replication, and self-healing across heterogeneous nodes.

Typically, a DSOd runs as a service on storage nodes and communicates with a cluster-wide control plane. It orchestrates object placement via a policy engine, coordinates replication or erasure coding, and participates in data integrity checks and recovery after node or disk failures. Interfaces may include object-store APIs and block/file abstractions, with support for versioning, snapshots, compression, and encryption. A DSOd often relies on a distributed consensus layer to agree on metadata changes and on a scalable metadata store to track object state.

Because DSOd is not a standardized, widely adopted term, its definition varies by design. In current practice, many storage systems use an Object Storage Daemon (OSD) model (for example Ceph's OSD), while the letters D and d indicate an expanded or distributed variant in theoretical works. The term appears mainly in conceptual discussions, vendor white papers, and academic writing rather than as a released, singular product.

Related topics include object storage, distributed consensus mechanisms, and modern distributed file and storage systems.