Trends and Market Outlook of Cloud Storage, Software‑Defined Storage, and Hyper‑Convergence

Entering the information age, data has become a core enterprise asset, prompting a shift from traditional storage to cloud storage, where enterprises lease third‑party storage space and leverage virtualization, distributed file systems, and software‑defined storage (SDS) to provide scalable, cost‑effective data services.

Market research shows the global cloud storage market reached $70.2 billion in 2021, projected to grow to $83.4 billion in 2022 and $376.4 billion by 2029 with a CAGR of 24.0 %. In China, SDS market size grew 45.5 % YoY in 2021 to $21.2 billion, with a 14.0 % five‑year CAGR, while HCI solutions saw a 41.1 % YoY increase to $18.5 billion.

Key domestic SDS players include Huawei, New H3C, Inspur, and startups such as XSKY and ShanYan Data; major HCI vendors feature New H3C, Huawei, Inspur, DeepSecurity, SmartX, Nutanix, and public‑cloud providers like Alibaba Cloud.

Software‑defined storage is driven by flash adoption, hardware‑agnostic designs, and open‑source projects (OpenStack, RedHat, OpenSDS, Ceph, GlusterFS, Swift). Its advantages include lower cost, higher reliability, and flexibility to avoid vendor lock‑in.

Distributed storage spreads data across many nodes, offering scalability, low cost, and high performance, while hyper‑convergence integrates compute, storage, and networking into a single framework, simplifying data‑center architecture and enabling rapid scaling.

The article also touches on operating‑system evolution, distinguishing open‑source (Linux) and closed‑source (Windows, macOS) systems, and highlights the growing domestic OS ecosystem (Kylin, UnionTech) and the need for robust open‑source communities to support future cloud, edge, and AI workloads.