Figure 87 Multipath Connection (When A San Connection Is Used - For Enhanced Performance) - Fujitsu ETERNUS DX100 S4 Design Manual

4. Connection Configuration
SAN Connection
When the ETERNUS DX is accessed from both of the servers, performance can be secured by con-
necting to the ETERNUS DX using one host interface port on each of the four host interfaces.
Figure 87 Multipath Connection (When a SAN Connection Is Used — for Enhanced Performance)
Server
HBA HBA
Port Port Port
CA#0 CA#1
CM#0
When configuring multipathing for reliability, make sure to configure a redundant connection
•
for the controllers of the ETERNUS DX. Configure paths to connect to different controllers
(CM#0 and CM#1). Combinations of host interface numbers (CA#0 and CA#1) in controllers do
not need to be taken into consideration.
Paths from a single server should be separately connected to a different host interface in case
•
of host interface failure.
■
Cluster Configuration
When servers are duplicated and connected using a cluster configuration to share a single ETER-
NUS DX among multiple servers, cluster control software is required.
■
Storage Cluster Configuration
An ETERNUS DX/AF is duplicated and connected in a cluster configuration by using Storage Clus-
ter.
The connection interface is FC or iSCSI. In addition, only the switch connection topology is suppor-
ted. Direct connections are not supported.
For more details on Storage Cluster, refer to
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Server
HBA HBA
Port Port Port Port Port
CA#0 CA#1
CM#1
ETERNUS DX
Copyright 2023 Fujitsu Limited
"Storage Cluster" (page
151
125).
P3AM-7642-32ENZ0