Application Scenarios
HyperReplication is used for data backup and DR by working with BCManager eReplication. The typical application scenarios include central backup and DR as well as 3DC.
Different remote replication modes apply to different application scenarios.
- Synchronous remote replication
Applies to backup and DR scenarios where the primary site is very near to the secondary site, for example, in the same city (same data center or campus).
- Asynchronous remote replication
Applies to backup and DR scenarios where the primary site is far from the secondary site (for example, cross countries or regions) or the network bandwidth is limited.
As for asynchronous remote replication on an IP network, you are advised to use a device such as a security gateway to encrypt links when adding the IP links to ensure data transfer security among storage systems and prevent information leakage.
The remote replication modes are generally determined by distance and bandwidth between sites. Table 1-5 describes the typical application scenarios of HyperReplication.
Analysis Item |
Central Backup and DR |
3DC |
|---|---|---|
Scenario characteristics |
|
|
Remote replication mode |
Synchronous remote replication or asynchronous remote replication |
|
Maximum distance between primary and secondary sites |
Synchronous remote replication: within 300 km Asynchronous remote replication: no restriction |
Synchronous remote replication: within 300 km Asynchronous remote replication: no restriction |
Central Backup and DR
In central backup and DR scenarios, service data distributed in different locations is backed up to the same site for centralized management. When a disaster occurs at a service site, the central backup site can take over services from the service site and recover data. Figure 1-8 shows a central backup and DR scenario.
Functions of HyperReplication are as follows:
- Collects data from service sites 01 to n, takes a snapshot of a secondary LUN, and maps the secondary LUN to a host. The snapshot can be used for data analysis and data mining.
- Allows the central backup site to take over services when any service site (01 to n) encounters a disaster and switches services back to the service site when the site recovers.
- Implements real-time backup (using the synchronous remote replication mode) between service site 01 and the central backup site that is 500 m away from service site 01. Performs replication tasks (using the asynchronous remote replication mode) between service site 02 and the central backup site that is 500 km away from service site 02.
Cooperation with BCManager eReplication to Implement DR
BCManager eReplication is a DR management software program specially designed for Huawei typical DR solutions. It provides a visualized and process-based platform for simple and fast operations and monitoring, with data consistency, snapshot, and remote replication supported.
Figure 1-9 illustrates how to use BCManager eReplication to deploy a remote replication task. Deploy the BCManager eReplication host in the DR center and install BCManager eReplication Server on the host. Install BCManager eReplication Agent on production hosts and standby hosts in the production center.
