1.5 Application Scenarios
The remote replication feature is used for data backup and DR. The typical application
scenarios include central backup and DR, and 3DC.
Different remote replication modes apply to different application scenarios.
l
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).
l
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.
NOTE
As for the asynchronous remote replication on an iSCSI network, you are advised to use a device such
as a security gateway to encrypt links when adding the iSCSI links to ensure data transfer security
among storage systems and prevent information leakage.
Different remote replication modes are used in different application scenarios. The modes are
generally determined by distance and bandwidth between sites.
typical application scenarios of HyperReplication and their conditions.
Table 1-5
Typical application scenarios of remote replication
Analysis Items
Central Backup and DR
3DC
Scenario characteristics
l
Backup data is managed
centrally so that data
analysis and data mining
can be performed without
affecting services.
l
When a disaster occurs at
a service site, the central
backup site can quickly
take over services at the
site and recover data,
achieving unified service
data management.
l
The remote replication
mode can be selected for a
service site flexibly based
on the distance between
the service site and the
central backup site.
l
Three data centers (DCs)
are deployed in two
locations. Real-time
backup and remote
backup are available
concurrently.
l
Service data is backed up
to the intra-city DR
center in real time
through a high-speed
link.
l
When data in the
production center is
unavailable, services are
quickly switched to the
intra-city DR center.
l
If a large-scale disaster
occurs at both the
production center and
DR center in the same
city, the remote DR
center can take over
services and implement
DR.
OceanStor V3 Series
Remote Replication Feature Guide for Block
1 Feature Description
Issue 06 (2018-01-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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