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OceanStor BCManager 6.5.0 eReplication User Guide 02

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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).
Product Introduction

Product Introduction

This section describes the positioning, highlights, and software architecture of eReplication.


In current enterprise IT systems, more and more applications that provide critical services need to be protected by the DR mechanism. With the development of cloud-based IT systems, an increasing number of VMs also require DR protection. The IT systems face the following challenges:

  • Unified management systems are unavailable for common applications, such as Oracle, IBM DB2, Microsoft SQL Server, and Microsoft Exchange Server, and VMs.
  • Different applications have different configuration and recovery processes. Configurations are complicated, time-consuming, and prone to mistakes. Besides, no automated creation or deployment is available.
  • Service switchover and tests are not visualized. As a result, customers can hardly understand related processes.

eReplication guides you through the DR service configuration step by step, visualizes the DR service process, and provides unified DR management of host applications and VMs.

Product Positioning

eReplication is designed to manage DR services of data centers for enterprises. With its excellent application-aware capabilities and Huawei storage products' value-added features, eReplication ensures service consistency during DR, simplify DR service configuration, support the monitoring of DR service status, and facilitate data recovery and DR tests.


  • Simple and efficient

    eReplication adopts an application-based management method and guides you through the DR service configuration step by step. It supports one-click DR tests, planned migration, fault recovery, and reprotection.

  • Visualized

    By graphically displaying physical topologies of global DR and logical topologies of service protection, eReplication enables you to easily manage the entire DR process. The status of protected groups and recovery plans is clear.

  • Integrated

    eReplication integrates storage resource management and can be used in various application scenarios, such as active-passive DR, geo-redundant DR, HyperMetro DC, local High Availability (HA), and local protection, reducing the O&M cost and improving the O&M efficiency.

  • Reliable

    eReplication ensures that the applications and data at the DR site are consistent with those at the production site. After the production site fails, the DR site immediately takes over services from the DR site, ensuring business continuity. The multi-site deployment improves the reliability of the DR service management system. eReplication backs up management data automatically so that the management system can be recovered rapidly if a disaster occurs.

Software Architecture

eReplication is designed to protect host applications and VMs and help recover data when disasters occur. It is compatible with Windows, Linux, AIX, and Solaris. On these platforms, eReplication works with value-added functions of Huawei storage arrays to ensure data consistency, protect applications, and implement DR for applications. Virtualization DR protects VM in virtual environments, such as FusionSphere (in array-based replication mode) and vSphere VMware (in host-based mode). Adopting the browser/server (B/S) architecture, eReplication allows you to use a browser to manage DR. Figure 1-1 shows the eReplication software architecture.
Figure 1-1  eReplication software architecture
eReplication contains two parts:
  • eReplication Agent
    Installed on a service host, the eReplication Agent is used to discover host applications, protect application data consistency, and recover applications. It also transfers information about application systems to the eReplication Server to help system administrators manage and configure data protection and DR tasks at ease.

    If the protected objects are FusionSphere VMs, VMware VMs, or NAS file systems, you do not need to install the eReplication Agent.

  • eReplication Server

    Installed on a DR management server, the eReplication Server provides DR service process control, DR policy scheduling, and configuration data management of DR resources and services. The eReplication Server contains the UI sub-system that provides users a GUI to perform DR management in a visible manner.

Updated: 2019-05-21

Document ID: EDOC1100075861

Views: 18432

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