Viewing Namespaces

This section describes how to view basic information about a namespace.

Context

Procedure

  1. Choose Resources > Resources > Namespace.
  2. Select a desired account from the Account drop-down list in the upper left corner.
  3. View information about namespaces of the selected account in the function pane. Table 1 describes the related parameters.

    Table 1 Namespace parameters

    Parameter

    Description

    Name

    Name of a namespace.

    ID

    ID of a namespace.

    Data Encryption

    Whether to enable data encryption for the namespace.

    NOTE:

    Data encryption is supported only after an advanced license is imported.

    Encryption Algorithm

    Encryption algorithm used after data encryption is enabled.

    Storage Pool

    Storage pool to which a namespace belongs.

    Running Status

    Running status of a namespace. The value is Normal.

    Space Quota Usage

    Ratio of the size of files written to a namespace to the space hard quota.

    NOTE:

    The size of written files is rounded up in the unit of 4 KB.

    File Quantity Quota Usage

    Ratio of the number of files written to a namespace to the file quantity hard quota.

    NOTE:

    When the protection status of the secondary resource in a remote replication pair is Access prohibited, Space Quota Usage and File Quantity Quota Usage of the corresponding namespace are displayed as -- on DeviceManager. The actual quota usage of the namespace is displayed only when the secondary resource protection status is Read/Write.

    Data Protection

    Data protection information of a namespace.

    Snapshot Directory Visibility

    Whether the snapshot directory of a namespace is visible.

    Redundancy Ratio

    Redundancy ratio of a namespace.

    NOTE:

    Redundancy Ratio is available only for storage pools that use the EC redundancy policy. For storage pools that use the data copy redundancy policy, this parameter is displayed as --.

    Security Style

    Indicates a security mode of a namespace. Possible options are:

    • Mixed: applies to the scenario where users of CIFS clients (using SMB) and UNIX clients (using NFS/HDFS/DPC) can access and control namespaces. In this style, the permissions are subject to the last permissions set for CIFS clients or UNIX clients. CIFS permissions (NT ACL) and UNIX permissions (UNIX Mode/POSIX ACL/NFSv4 ACL) do not coexist.
    • UNIX: applies to the scenario where UNIX mode bits, POSIX ACLs, or NFSv4 ACLs control user permissions.
    NOTE:

    In Mixed style (which supports NT ACLs), if you have configured an NT ACL for a file or directory on a Windows client and switched Mixed to UNIX, the NT ACL in Mixed style will become invalid.

    CIFS Case Sensitivity

    Whether the name of a CIFS shared file or directory is case sensitive.

    • Case-sensitive: The object and HDFS services are well supported. However, in the protocol interworking scenarios, CIFS case insensitivity is not supported.
    • Case-insensitive: CIFS is well supported, but some functions of the object and HDFS services are unavailable. For example, results of object listing operations cannot be sorted and returned in sensitive lexicographical order.
    NOTE:
    • If the file service is disabled, only Case-insensitive is supported.
    • CIFS case sensitivity cannot be modified after the namespace is created.

    Automatic Update of Atime

    Atime indicates the time when the namespace is accessed. After this function is enabled, the system updates the access time of a namespace based on the value of Update Frequency.

    Update Frequency

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

    Recycle Bin

    Whether the recycle bin is enabled for a namespace.

    SmartIndexing

    Whether metadata indexing is enabled for a namespace.

    Audit Log

    Whether the audit log function is enabled for a namespace.

    DPC

    Whether DPC is enabled for a namespace.

    • You can click the name of the desired namespace to view its general, quota, protocol, protection, and WORM information.
    • When the system is being upgraded, the WORM information of the namespace may be incorrect. View the WORM information after the upgrade is complete.