Table 3-5
Cable connection principles
Network
Type
Cable Connection Principle
Network
between hosts
and storage
arrays
l
Hosts and storage devices are connected through Ethernet switches.
Each data center has two Ethernet switches.
l
Each Ethernet switch has at least N ports to connect hosts and storage
devices.
N = 1 x Number of S 2 x Number
of Storage
Devices.
l
Host-Ethernet switch connection: Each host has at least two Ethernet
ports to connect two Ethernet switches of the data center. It is
recommended that the two ports be separated on two HBAs.
l
Storage device-Ethernet switch connection: Each controller has at
least two ports to connect two Ethernet switches of the data center. It
is recommended that the two ports be separated on two Ethernet
interface cards.
HyperMetro
replication
network
l
The HyperMetro replication network between storage devices uses
Fibre Channel switches for connection. Each data center has two
Fibre Channel switches.
l
Storage device-Fibre Channel switch connection: Each controller has
two Fibre Channel ports to connect two Fibre Channel switches of the
data center. It is recommended that the two ports be separated on two
Fibre Channel interface cards.
Same-city
network
between data
centers
l
Dense wavelength division multiplexing (DWDM) devices are
recommended for data center interconnection.
l
If the HyperMetro replication network is a Fibre Channel network,
Fibre Channel switches are cascaded in one-to-one mode. If the
HyperMetro replication network is an IP network, Ethernet switches
are cascaded in one-to-one mode.
Arbitration
network
l
The quorum server is connected to storage devices through Ethernet
switches. Each data center has two Ethernet switches.
l
Each controller of a storage device has one IP port to connect to one
Ethernet switch of the data center.
l
The quorum server is connected to Ethernet switches. It is
recommended that two IP ports be separated on two network adapters
to connect two Ethernet switches at the quorum site.
Management
network
l
An Ethernet switch is used for management. The management
network ports of the host and controller are connected to one Ethernet
switch of the data center.
l
You can use BCManager eReplication to manage networks. For
details, see
Business Continuity and Disaster Recovery Solution
V200R001CXX User Guide (Active-Active Mode)
. For details about
how to obtain the documentation, see
3.2.1 Preparing Tools, Meters,
.
OceanStor V3 Series
HyperMetro Feature Guide for File
3 Installation
Issue 05 (2018-01-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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