After you create a file system, you must mount the file system to a directory on a compute node. This topic describes the usage notes and mounting methods of Apsara File Storage NAS file systems. Read this topic before you mount a NAS file system.
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Precautions
Before you mount a file system, you must Create a permission group and add rules to the permission group and Create a mount target.
You can mount a NAS file system only on a compute node that resides in the same virtual private cloud (VPC) as the mount target of the file system. The VPC IP address of the compute node must be authorized in a rule of the permission group that is attached to the mount target. For more information, see Manage a permission group.
NoteOn and after November 21, 2022, classic network mount targets cannot be created for General-purpose NAS file systems. However, classic network mount targets created before November 21, 2022 can still be used to access file systems.
If a mount target resides in the classic network, only the ECS instances in the classic network can access the mount target. The private IP address of the ECS instance must be authorized in a rule of the permission group that is attached to the mount target. You can migrate an ECS instance from the classic network to a VPC. For more information, see Migrate ECS instances from the classic network to a VPC.
You can mount a General-purpose NAS file system across multiple zones. We recommend that you mount an Extreme NAS file system on an ECS instance that resides in the same zone as the file system. Otherwise, the performance of the Extreme NAS file system is reduced.
Extreme NAS file systems support only Linux operating systems and can be accessed by using only NFSv3.
Scenarios
Mount NAS file systems on ECS instances
Use the NAS console to mount file systems
Run the mount command to mount a file system
If you are unable to mount a file system on an ECS instance, you can use the scripts that are provided by NAS to troubleshoot issues. For more information, see Fix mount issues.
Mount NAS file systems on containers
To mount a file system on a container, use the methods described in Recommended mount methods.
You can mount NAS file systems on Container Service for Kubernetes (ACK) clusters, ACK Serverless (ASK) clusters, and self-managed Kubernetes clusters. For more information, see the following topics:
Mount a file system across VPCs or accounts
To mount a file system across virtual private clouds (VPCs) in the same region, or across different accounts and regions, use Cloud Enterprise Network (CEN). For more information, see the following topics:
Access a file system from a data center
If a server in your on-premises data center needs to access a NAS file system, you can use one of the following methods to mount the file system:
Access an Apsara File Storage NAS file system from a local data center by using VPN Gateway
Access a NAS file system from a data center by using a NAT gateway
Migrate data from an on-premises storage system to a NAS file system
You can migrate data from an on-premises storage system to a NAS file system by using an SFTP client, the rsync tool, or the Robocopy tool. For more information, see Migrate data from an on-premises storage system to NAS.
Unmount a file system
The following topics describe how to unmount a file system from an ECS instance: