Mountpoint Management

1. Mount Point Overview

What is a Mount Point?

In the FPT File Storage – High Performance system, a Mount Point is a logical access point that allows users to connect to a specific directory (path) within the storage pool. To mount data from a Bare Metal server, you need to create a Mount Point with the following configuration details:

• Path : Specific directory path in the storage system you want to access.
• Access protocol : Such as NFSv3 or NFSv4.
• Access Subnet : Only servers within the specified subnet are allowed to mount. If a server is not in this subnet list, the mount request will be denied.

Role of the Mount Point

Component	Role
Mount Point	Access point from internal network to file storage via NFSv3/NFSv4/S3.
Client (server)	Mounts data from file storage, shown as a local disk.
Storage Backend (VAST)	Underlying storage infrastructure.
QoS Policy	Attached to mount point to limit IOPS, throughput, etc.

Mount Point Structure

Field	Description
Name	Display name in the portal
Path	Actual path, e.g., /ml-data
Protocol	Protocol: NFSv3 or NFSv4
Subnet	CIDR network range allowed to access
Endpoint Range	Connection endpoint
QoS Policy	Performance control policy
NFS Alias	Alias path shown in the OS
Relationships with other components

• VPC & Subnet: A Mount Point can be assigned to multiple subnets across the same or different VPCs. Only servers in the assigned subnets can access it.
• QoS Policy : Controls performance through:
  • Max Throughput (MB/s)
  • Max IOPS
  • Burst Limit
• NFS Protocol : Supports TCP and RDMA. In particular:
  • TCP : Common and easy to use.
  • RDMA : High performance, low latency.
  • Multi-Path RDMA : For large workloads, allows parallel connections.

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2. Creating a Mount Point

Important Principles

• Bind to specific subnet : Only servers in the assigned subnet can mount.
• Do not create at root path ("/") : Use subdirectories, e.g., /project-a, /team1/data.
• One path – one mount point : No duplicates allowed.
• Unlimited number of mount points : As long as paths are not duplicated.
• NFSv4 requires full path export : All parent directories in the path must also be exported.

Example: To mount /project-a/team1/data using NFSv4, /project-a and /project-a/team1 must also be exported.

Steps to Create a Mount Point on Unify Portal

1. Go to the MountPoint tab, click Create MountPoint.
2. Fill in the information:
   • Region : Select the usage region.
   • VPC / Subnet : Choose the subnet containing GPU servers.
   • Mount Point Name : 3–63 characters, letters/numbers/“_”, cannot start/end with a special character.
   • Protocol : NFSv3 or NFSv4.
     • If NFSv3: You can add an NFS Alias.
     • If NFSv4: Ensure all parent folders in the path also use NFSv4.
   • Path : Must start with "/", not end with "/" or space, and must be unique.
   • Options : Tick "Create new directory" if the path does not exist.
   • QoS Policy : Select an existing one or create a new one.
3. Click Create to finish.

Result

• Success : Mount Point will appear on the portal and can be mounted from servers in the subnet.
• Failure : An error will be displayed – review the entered information.

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3. Deleting a Mount Point

You can delete a Mount Point when it is no longer in use, to:

• Revoke access.
• Safely disconnect between servers and the storage system.
• Support reconfiguration or network infrastructure changes.

How to Do It

1. Go to the Resource tab on Unify Portal.
2. Find the Mount Point to delete, choose Action > Delete.
3. Confirm the operation when prompted.

⚠️ Note:

• Ensure all applications have unmounted before deletion.
• Deleting a Mount Point does not delete the data in the assigned directory.