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OceanStor 2600 V3 Video Surveillance Edition V300R006 Basic Storage Service Configuration Guide for File

This document is applicable to OceanStor OceanStor 2600 V3 Video Surveillance Edition. This document describes the basic storage services and explains how to configure and manage basic storage services for storage system.
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Modifying an NFS Share Client

Modifying an NFS Share Client

This section describes how to modify the properties of an NFS share client.


An NFS share client has been created.


  1. Log in to DeviceManager.
  2. Choose Provisioning > Share > NFS (Linux/UNIX/MAC).
  3. Select the NFS share whose client properties you want to modify.
  4. In the Client Information area, select a client whose properties you want to modify and click Properties.

    The Properties of Client dialog box is displayed.

  5. Modify the client properties.

    Table 4-18 describes related parameters.
    Table 4-18 NFS share client properties





    Permission for a client to access the NFS share. The permissions include:

    • Read-only: Only reading the files in the share is allowed.
    • Read-write: Any operation is allowed.

    [Default value]


    Write Mode

    Write mode of the NFS share client. The modes include:

    • Synchronous: The data written to the share is written into the disk immediately.
    • Asynchronous: The data written to the share is written into the cache first, then into the disk.

    Data may be lost if a client mounts an NFS share in asynchronous mode, and the client and storage system are faulty at the same time.

    [Default value]


    Permission Constraint

    Determines whether to retain the user identity (UID) and group ID (GID) of a shared directory.

    • all_squash: The UID and GID of a shared directory are mapped to user nobody and are applicable to public directories.
    • no_all_squash: The UID and GID of a shared directory are reserved.

    [Default value]


    Root Permission Constraint

    Controls the root permission of a client.

    • root_squash: The client cannot access the storage system as user root. If a client accesses the storage system as user root, the client will be mapped as user nobody.
    • no_root_squash: A client can access the storage system as user root and user root can fully manage and access the root directory.

    [Default value]


    Source Port Verification

    Determines whether to enable source port verification.

    • secure: If secure is selected, clients can use ports 1 to 1023 to access NFS shares.
    • insecure: If insecure is selected, clients can use any port to access NFS shares.

    [Default value]


    Anonymous User ID

    Sets the UID and GID of the user accessing the shared directory who is mapped as an anonymous user.


    This parameter is available in V300R006C30 and later versions.

    [Value range]

    0 to 4294967294

    [Default value]


  6. Click OK.
Updated: 2019-07-12

Document ID: EDOC1100021203

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