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File Access and Protocols Feature Guide 13

OceanStor 18500 V3 and 18800 V3 Mission Critical Storage System V300R003

This document describes the implementation principles and application scenarios of the NAS feature. Also, it explains how to configure and manage NAS.
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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 List 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 2-23 describes related parameters.

    Table 2-23  NFS share client properties





    The permission for 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 (Optional)

    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 (Optional)

    Determine whether to retain the user identity (UID) and group ID (GID) of a shared directory.
    • all_squash: The user ID (UID) and group ID (GID) of a shared directory are mapped to user nobody, which are applicable to public directories.
    • no_all_squash: The UID and GID of a shared directory are reserved.

    [Default value]


    root Permission Constraint (Optional)

    Control 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]


  6. Click OK.
Updated: 2019-08-14

Document ID: EDOC1000084098

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