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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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Application Scenarios

Application Scenarios

The CIFS share feature is primarily used by Windows-based clients to share files in a non-domain environment or an AD domain environment.

CIFS Share in a Non-Domain Environment

The storage system can employ CIFS shares to share the file systems to users as directories. The users can only view or access their own shared directories. Meantime, the storage system can set shared directories for different users to make shared directories and user names consistent. In this way, the users cannot view or access the shared directories of other users.

As shown in Figure 3-1, the storage system serves as the CIFS server and employs the CIFS protocol to provide shared directories system access for clients. After the clients map the shared files to the local directories, users can access the files on the server as accessing local files. You can set locally authenticated user names and passwords in the storage system to determine the local authentication information that can be used for accessing the file system.
Figure 3-1  CIFS share in a non-domain environment

NOTE:

After Homedir is enabled, the storage system can set shared files for different users to make shared directories and user names consistent. In this way, the users cannot view or access the shared directories of other users.

CIFS Share in an AD Domain Environment

With the expansion of local area network (LAN) and wide area network (WAN), many enterprises use the AD domain to manage networks in Windows. The AD domain makes network management simple and flexible.

A storage system can be added to an AD domain as a client. That is, it can be seamlessly integrated with the AD domain. The AD domain controller saves information about all the clients and groups in the domain. Clients in the AD domain need to be authenticated by the AD domain controller before accessing the CIFS share provided by the storage system. All the domain users can access shared directories provided by the storage system. The AD domain user can implement file-specific permission management. Different clients have different permissions for each shared directory. Meantime, a client in the AD domain can only access the shared directory with the same name as the client, as shown in Figure 3-2.
Figure 3-2  CIFS share in an AD domain environment

NOTE:
  • If AD domain authentication is used, ensure that the master controller of the storage system can communicate with the domain controller. You can run the show controller general command on the CLI to query the master controller.
  • After Homedir is enabled, a user in the AD domain can only access the shared directory with the same name as the user.
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Updated: 2019-08-14

Document ID: EDOC1000084098

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