Creating a File System

This operation enables you to create a file system to store data.

Context

An account can create only one file system, and the name of the file system must be unique.

Procedure

  1. Choose Services > HDFS Service > File System.
  2. In the Account drop-down list in the upper left corner, select the account for which you want to create a file system.
  3. Click Create.

    The Create File System page is displayed.

    Alternatively, you can choose Services > HDFS Service > Account and click the name of the desired account. On the page that is displayed, click the File System tab and click Create.

  4. Set the basic information about the file system.

    Table 1 describes related parameters.
    Table 1 File system parameters

    Parameter

    Description

    Name

    Indicates the name of the file system.

    NOTE:
    • The name must be unique.
    • The name can contain only letters, digits, and underscores (_).
    • The name contains 1 to 255 characters.

    Storage Pool

    Indicates the storage pool to which the file system belongs.

    Automatic Update of Atime

    Indicates whether to enable the function of automatically updating the Atime. Atime indicates the file system access time. After this function is enabled, the system automatically updates the time when data in the file system is accessed.

    NOTE:

    Enabling Automatic Update of Atime compromises the system performance.

    Update Frequency

    Indicates the Atime update frequency. The value can be Hourly or Daily.

    Associate Zone

    Select a zone to be associated with the file system. For details, see 5.

  5. Select a zone to be associated with the file system.

    1. In Associate Zone, click Choose.

      The Associate Zone page is displayed.

    2. Select the NameNode zone to be associated with the file system and click OK.
      • If no subnet is configured, you can click Create to create one. For details, see Creating a Subnet.
      • If a subnet has been configured, you can click Modify in the area where the subnet resides to modify the subnet parameters. For details, see Modifying a Subnet.
      • After creating a subnet, you can click Create to create a NameNode zone. For details, see Creating a NameNode Zone.

  6. Click OK.
  7. Confirm your operation as prompted.
Parent topic: Configuring and Managing File Systems