Planning - Huawei OceanStor V3 Series Features Manual

OceanStor V3 Series
Remote Replication Feature Guide for Block
This chapter describes the networks and data you must plan before remote replication
configuration.
Network Planning
Remote replication involves a primary storage device and a secondary storage device.
Therefore, you must plan the networking mode for remote replication and replication links
between the storage devices before configuring remote replication.
Remote replication supports Fibre Channel and IP networks as well as Fibre Channel and
iSCSI ports for replication. Based on application scenarios, the following three networking
modes are available: direct connection using iSCSI host ports, direct connection using Fiber
Channel host ports (multi-mode optical fibers), and connection through remote transfer
devices (switches or routers).
remote replication in each networking mode.
Table 2-1 Maximum transmission distance for remote replication in different networking
modes
Networking Mode
Direct connection using iSCSI
host ports
Direct connection using Fiber
Channel host ports (multi-
mode optical fibers)
Connection through remote
transfer devices (switches or
routers)
Issue 06 (2018-01-30)
NOTE
If two storage devices are connected using a switch through Fibre Channel ports, it is recommended that
their access ports on the switch be in the same zone. This ensures isolation between host service ports
and inter-array replication service ports, minimizing the impact on each other.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Table 2-1 provides the maximum transmission distance for
Synchronous remote
replication
100 m to 150 m
500 m
200 km

2 Planning

2
Planning
Asynchronous Remote
Replication
100 m to 150 m
500 m
Not limited
29