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ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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Chapter 3
Connections
This chapter explains connections for the ETERNUS DX Disk storage system.
3.1 Host Connections
FC, iSCSI, FCoE, and SAS are available as host interfaces. The server and the ETERNUS DX Disk storage system
can be connected directly or via a switch.
3.1.1 Host Interfaces
This section describes each host interface.
■ FC (Fibre Channel)
FC supports two connection topologies: Fibre Channel Arbitrated Loop (FC-AL) and Fabric. Direct connections
and switch connections to servers are available.
Two types of host interfaces with a maximum transfer speed of either 16Gbit/s or 8Gbit/s are available.
■ iSCSI
Direct connections and switch connections to servers are available. Two types of host interfaces with a
maximum transfer speed of either 10Gbit/s or 1Gbit/s are available.
In order to maintain iSCSI performance, the iSCSI network should be physically separated from other types of
networks (such as networks for Internet access and file transfers).
• CHAP
CHAP authentication can prevent unauthorized access. The following CHAP authentication methods are
supported:
- Unidirectional CHAP
- Bidirectional CHAP
When FC switches are used, zoning should be set for the FC switches to ensure the security of data.