How OpenSDS Is Transforming Multi‑Cloud Storage Management

1. Open Source Background

Enterprises are transitioning from traditional data centers to the cloud; compute and network virtualization have progressed, but storage virtualization lags, facing heterogeneous management and siloed implementations. Software‑Defined Storage (SDS) aims to pool and service storage resources, yet lacks mature control‑plane standards.

2. Community Formation and Goals

Huawei partnered with leading storage vendors to launch the OpenSDS open‑source community under the Linux Foundation, aiming to standardize SDS, publish a reference controller architecture, and open standard APIs. Users can obtain a lightweight, vendor‑neutral SDS environment for on‑demand resource provisioning, unified data management, and cross‑cloud data flow.

3. Application Scenarios

Traditional Data‑Center : Standardized storage interfaces simplify heterogeneous storage management, reduce O&M costs, improve utilization, and avoid vendor lock‑in.

Interface standardization unifies storage device APIs, enabling easy integration with cloud platforms.

Service‑oriented storage pools abstract capabilities, supporting SLA‑based service levels.

Multi‑Cloud : Decouples storage from cloud providers, provides unified data management across private and public clouds, and enables data lifecycle management and cross‑cloud data flow.

Unified data management offers a single view for data placement and movement.

Data lifecycle management covers provisioning, protection, migration, archiving, and deletion.

4. Technical Solution

Data Lifecycle Management : OpenSDS implements SLA‑based volume provisioning, snapshots, and remote replication.

Array replication links same‑vendor arrays to ensure data safety during transfer.

Host replication integrates third‑party software (DRDB) to provide cross‑vendor protection, though it consumes more host resources.

Multi‑Cloud Data Management : The OpenSDS engine uses Dock to interface with various public and private cloud storage services (currently object storage), providing a unified northbound API and cross‑cloud lifecycle and data‑flow policies.

5. Future Planning

Since the 2018 release of two community versions focused on data‑lifecycle and multi‑cloud management, OpenSDS plans to extend data movement types, unified management capabilities, intelligent monitoring, and big‑data analytics to meet diverse multi‑cloud requirements.