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Chapter 3 Connections
3.1 Host Connections
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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Figure 3.4 Multipath connection (switch connection)
■ Cluster configuration
When a server is duplicated in a cluster configuration and the ETERNUS DX Disk storage system is shared by
multiple servers, software to control the cluster configuration is required.
• When configuring multipathing for reliability, make sure to configure a redundant connection for the
controllers of the ETERNUS DX Disk storage system. 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.
Server
HBA
HBA
Server
HBA
HBA
Server
HBA
HBA
Switch Switch
ETERNUS DX Disk storage system
CM#0
Port
CA
Port
Port
CA
Port
CM#1