Help Center/ Scalable File Service/ Service Overview/ What Is SFS?
Updated on 2026-02-28 GMT+08:00
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What Is SFS?

Overview

Scalable File Service (SFS) provides scalable, high-performance (NAS) file storage. With SFS, you can enjoy shared file access spanning multiple Elastic Cloud Servers (ECSs), Bare Metal Servers (BMSs), and containers created on Cloud Container Engine (CCE). Figure 1 shows the access to SFS.

Figure 1 Accessing SFS
Compared with traditional file storage, SFS has the following advantages:
  • File sharing

    Cloud servers in multiple availability zones (AZs) of the same region can access the same general-purpose file system and share files.

  • Elastic scaling

    The file system storage can be scaled up or down on demand to dynamically adapt to service changes without interrupting applications. You can complete resizing with a few clicks.

  • Superior performance and reliability

    SFS enables file system performance to increase as capacity grows, and it delivers a high data durability to support rapid service growth.

    The background storage system adopts a distributed architecture and uses full redundant design for modules, which eliminate single-node faults.

  • Seamless integration

    SFS supports Network File System (NFS). With this standard protocol, a broad range of mainstream applications can read and write data in the file system.

  • Easy operation and low costs

    On an intuitive graphical user interface (GUI), you can create and manage general-purpose file systems with ease. SFS slashes the cost as it is charged on a pay-per-use basis.

Introduction Video

Accessing SFS

You can access SFS on the console or via application programming interfaces (APIs) by sending HTTPS requests.

  • APIs

    Use APIs if you need to integrate SFS into a third-party system for secondary development. For detailed operations, see Scalable File Service API Reference.

  • Console

    Use the console if you prefer a web-based UI to perform operations.