Apsara File Storage NAS provides a wide variety of features, such as scalable capacity, shared access, support for several standard protocols, security and compliance, encryption, flexible access modes, data transmission, and data backup. NAS allows you to mount file systems on various compute nodes. These compute nodes include Elastic Compute Service (ECS) instances, ECS Bare Metal Instance instances, E-HPC nodes, and Alibaba Cloud Container Service for Kubernetes (ACK) nodes. After you enable communication between different virtual private clouds (VPCs) and regions, you can mount file systems on compute nodes across VPCs or regions.

Scalable capacity

NAS provides scalable file systems. You can add file systems to increase the storage capacity, or delete file systems to decrease the storage capacity.

Shared access

NAS allows shared access to the same data source in a file system from multiple compute nodes and uses file locks to ensure data consistency.

Protocol compatibility

NAS Supports standard protocols, such as NFS (NFSv3.0 and NFSv4.0) and SMB (SMB 2.1 and SMB 3.0). NAS also supports mainstream operating systems, such as Linux and Windows.

Access control and compliance

Based on Resource Access Management (RAM) authentication, NAS provides VPC-based isolation and security group-based access control to ensure data security.

Data encryption

NAS provides data encryption to prevent user data from being intercepted or sniffed during data transmission.

Flexible access modes

NAS allows you to access file systems from various networks, such as VPCs, on-premises IDCs, and dedicated networks.

Data transmission

NAS supports synchronous or asynchronous data transmission between NAS file systems or between NAS and Object Storage Service (OSS) by using Data Transmission Service (DTS).

Data backup

NAS generates multiple replicas for data based on flexible backup policies. These replicas are used to restore corrupted data.