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Container Service for Kubernetes:Manage NAS volumes using Container Network File System (CNFS)

Last Updated:Jan 23, 2026

Container Network File System (CNFS) improves the performance of NAS volumes and provides Quality of Service (QoS) control. CNFS lets you share NAS volumes, manage isolated volumes, and automatically scale out storage.

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Description

Manage NAS file systems using CNFS

Container Network File System (CNFS) abstracts Alibaba Cloud file storage into a Kubernetes object (CRD) for independent management. This includes operations such as creating, deleting, mounting, monitoring, and scaling out file systems. You can use CNFS to manage NAS file systems independently to improve their performance and Quality of Service (QoS).This topic describes how to use CNFS to manage NAS file systems and apply them to workloads.

Automatically scale out NAS volumes using CNFS

You can define an automatic scale-out policy for Apsara File Storage NAS (NAS) persistent volumes that are managed by Container Network File System (CNFS). The policy automatically scales out a NAS persistent volume when its usage exceeds a specified threshold. This topic describes how to use CNFS to automatically scale out NAS persistent volumes.

Recover NAS file data using the recycle bin

Container Network File System (CNFS) supports the recycle bin feature, which is used to restore accidentally deleted files. This topic describes how to restore deleted files by using the recycle bin feature of CNFS. An NGINX application that has Internet access is used as an example.