Help Center/ Scalable File Service/ Getting Started/ Mount a File System/ Mounting a File System Automatically
Updated on 2024-07-19 GMT+08:00
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Mounting a File System Automatically

File system mounting information may be lost after a server is restarted. You can configure auto mount on the server to avoid losing the mounting information.

Restrictions

Because the service startup sequences in different OSs vary, some servers running CentOS may not support the following auto mount plans. In this case, manually mount the file system.

Procedure (Linux)

  1. Log in to the ECS as user root.
  2. Run the vi /etc/fstab command to edit the /etc/fstab file.

    At the end of the file, add the file system information, for example: 
    Mount point /local_path nfs vers=3,timeo=600,nolock 0 0

    Replace Mount point and /local_path with actual values. You can obtain the mount point from the Mount Address column of the file system. Each record in the /etc/fstab file corresponds to a mount. Each record has six fields, as described in Field Description.

    For optimal system performance, configure file system information based on the mount example provided. If needed, you can customize certain mount options, but the customization may affect system performance.

  3. Press Esc, enter :wq, and press Enter to save and exit.

    After the preceding configurations are complete, the system reads the mount information from the /etc/fstab file to automatically mount the file system when the ECS restarts.

  4. (Optional) View the updated content of the /etc/fstab file.

    cat /etc/fstab

    Figure 1 shows the updated file content.

    Figure 1 Updated file content

  5. If auto mount fails due to a network issue, add the sleep option and a time in front of the mount command in the rc.local file, and mount the file system after the NFS service is started. 

    sleep 10s && sudo mount -t nfs -o vers=3,timeo=600,noresvport,nolock,tcp Mount point/local_path

Field Description

Table 1 describes the mount fields.

Table 1 Field description

Field

Description

Mount point

The mount point of the file system to be mounted. Set this parameter to the mount point in the mount command in Mounting an NFS File System to ECSs (Linux).

/local_path

The directory where the file system is mounted on in the ECS. Set this parameter to the local path in the mount command in Mounting an NFS File System to ECSs (Linux).

nfs

The file system or partition mount type. Set it to nfs.

vers=3,timeo=600,nolock

Mount options. Use commas (,) to separate multiple options.

  • vers: The file system version. Value 3 indicates the NFSv3 protocol.
  • timeo: The waiting time before the NFS client retransmits a request. The unit is 0.1 second. The recommended value is 600.
  • nolock: specifies whether to lock files on the server using the NLM protocol.

0

Choose whether to back up file systems using the dump command.

  • 0: Backup is not used.
  • An integer larger than 0 means that the file system is backed up. A smaller value has a higher check priority.

0

Choose whether to check file systems using the fsck program when the ECS starts and specify the sequence for checking file systems.

  • 0: File systems are not checked.
  • By default, this field is set to 1 for the root directory. The values for other directories start from 2, and one with a smaller integer is checked earlier than that with a larger integer.

Procedure (Windows)

Ensure that an NFS client has been installed on the target server before mounting. This section uses Windows Server 2012 as an example to describe how to mount a file system.

  1. Log in to ECS.
  2. Before mounting the file system, create a script named auto_mount.bat, save the script to a local host, and record the save path. The script contains the following content: 

    mount -o nolock mount point corresponding drive letter
    Figure 2 Saving the script

    For example, the auto_mount.bat script of a file system contains the following content:

    For SFS Capacity-Oriented file systems: mount -o nolock mount point X:

    • You can copy the mount command of the file system from the console.
    • After the script is created, manually run the script in the Command Prompt to ensure that the script can be executed successfully. If you can view the file system in This PC after the script execution, the script can be executed properly.
    • This .bat script cannot be stored in the same path in 3 that stores the .vbs file. In this example, the .bat script is stored in C:\test\.

  3. Create a .txt file whose name is XXX.vbs and save the file to the directory C:\Users\Administrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup. The file contains the following content: 

    set ws=WScript.CreateObject("WScript.Shell") 
ws.Run "Local path and script name of the auto_mount.bat script /start", 0
    Figure 3 Creating .vbs file

    In this example, the local path of the auto_mount.bat script is C:\test\. Therefore, the content in the .vbs file is as follows:

    set ws=WScript.CreateObject("WScript.Shell") 
ws.Run "C:\test\auto_mount.bat /start",0

  4. After the task is created, you can restart the ECS and check whether the configuration is successful. After the configuration is successful, the file system automatically appears in This PC.
Parent topic: Mount a File System