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Basic Storage Service Configuration Guide for File

OceanStor V3 Series V300R006

This document is applicable to OceanStor 2200 V3, 2600 V3, 5300 V3, 5500 V3, 5600 V3, 5800 V3, 6800 V3, 18500 V3, and 18800 V3. It describes the basic storage services and explains how to configure and manage them.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
FTP Feature

FTP Feature

This section describes the concepts, license requirements, applicable products, and restrictions of the FTP feature.

Overview

FTP is one of the earliest protocols used by the Internet. It transfers files from one computer to another over the Internet.

Introduction to FTP

Storage systems support FTP, FTPS, and FXP.

When FTP is used, the following two connections are established between a client and a server:

  • Control connection: controls data transfer. Generally, port 21 is used.
  • Data connection: transfers data between the client and the server. Generally, port 20 is used.

After FTP is enabled in a storage system, a client can use FTP to access shared files in the storage system.

FTP has the following advantages:

  • The transfer speed is fast, so it is suitable for transferring large files. The transfer speed increases with the file size.
  • FTP is easy to use. It masks computer system information and enables file transfer between different operating systems.

FTPS (FTP-SSL), an extension to the commonly used FTP, adds support for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) cryptographic protocols. SSL is a protocol that provides data encryption and decryption during secure data transmission between a client and an SSL-based server. FTPS has two transfer modes:

  • Explicit

    By default, control connection uses port 21 and data connection uses port 20.

  • Implicit

    By default, control connection uses port 990 and data connection uses port 989.

The File Exchange Protocol (FXP) controls file transmission between two FXP-based servers. In the FXP session, a client maintains a standard FTP connection to two servers, and can direct either server to connect to the other to initiate a file transfer.

NOTE:
  • A storage system provides the FTPS certificate by default. If you do not need the default certificate, export the certificate request file from the storage system, generate a new certificate file in the certificate server, and import it to the storage system.
  • If you need to use FXP, run the change service ftp fxp_enables=yes command to enable it.

License Requirements and Compatible Products

This section describes the license requirements, compatible products, and specifications of FTP.

License Requirements

FTP is a basic feature that does not require an extra license.

Compatible Products

Product Series

Product Model

Product Version

OceanStor 2000 V3 series

OceanStor 2200 V3 (16 GB memory per controller) and 2600 V3

V300R006

OceanStor 5000 V3 series

OceanStor 5300 V3, 5500 V3, 5600 V3, and 5800 V3

V300R006

OceanStor 6000 V3 series

OceanStor 6800 V3

V300R006

OceanStor 18000 V3 series

OceanStor 18500 V3 and 18800 V3

V300R006

Specifications

Specifications vary with product models. For details about the specifications, see the product description specific to your product model.

Impact and Restrictions

This section describes the FTP feature in terms of supported protocols, network requirements, dependency on other features, and impact on system performance.

Supported Protocols

Storage systems support FTP, FTPS, and FXP.

Network Requirements
  • The FTP feature supports both IPv4 and IPv6 network access protocols.
  • To ensure the performance of the FTP service, do not configure NFS or CIFS services on a GE service port that runs FTP services.
Interaction with Other Features

Table 1-7 describes the relationship between the FTP feature and other features.

Table 1-7 Relationship between the FTP feature and other features

Feature

Relationship

CIFS/NFS/HTTP

In multi-protocol sharing mode, you are advised to use the byte range lock to exclusively access a file in a file system to prevent file data overwriting or loss and ensure shared data consistency.

Impact on System Performance

File systems can be shared in NFS, CIFS, FTP, and HTTP modes at the same time. When clients concurrently access a file system using different protocols, the overall performance deteriorates slightly.

Compatibility

Verify that clients' operating systems are compatible with the storage system. You can query the compatibility using the Huawei Storage Interoperability Navigator.

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Updated: 2019-07-12

Document ID: EDOC1000138856

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