Unified License - Fujitsu ETERNUS DX100 S4 Design Manual

5. Hardware Configurations
Optional Product Installation Conditions
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iSCSI
iSCSI is a communication protocol that transfers SCSI commands by encapsulating them in IP pack-
ets over Ethernet.
Since iSCSI can be installed at a lower cost and the network configuration is easier to change than
FC, iSCSI is commonly used by divisions of large companies and by small and medium-sized com-
panies where scalability and cost-effectiveness are valued over performance.
●
FCoE
Since Fibre Channel over Ethernet (FCoE) encapsulates FC frames and transfers them over Ether-
net, a LAN environment and an FC-SAN environment can be integrated. When there are networks
for multiple I/O interfaces (e.g. in a data center), the networks can be integrated and managed.
●
SAS
Serial Attached SCSI (SAS) enables high speed data transfers by upgrading existing reliable SCSI
connection standards to allow serial transfers. SAS is commonly used for small-sized systems
where performance and cost-effectiveness are valued over scalability.
●
Ethernet
Ethernet is a NAS connection interface. An Ethernet network can be accessed as a file server from
multiple connected clients with different operating systems, for the easy sharing of data. The
ETERNUS DX has an internal file system for connection to existing LAN, allowing Ethernet to be in-
stalled relatively easily. However, load on the network will increase, and therefore Ethernet is not
suitable for applications that require high transfer rates.
A Unified kit is required to install Ethernet host interface. Registering the Unified kit license to the
storage system enables the NAS function.
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Number of Installable Host Interfaces
When one controller is installed, two host interfaces for base and expansion configurations (two
host interfaces per storage system) can be installed. When two controllers are installed, two host
interfaces for base and expansion configurations (four host interfaces per storage system) can be
installed.
Different types of host interfaces can exist together in the same ETERNUS DX.

Unified License

Installing the Unified License requires the Memory Extension and an Ethernet host interface, or a
controller module that is equipped with an Ethernet host interface.
The Memory Extension is installed as standard in the ETERNUS DX100 S4/DX200 S4 controller mod-
ule for Unified models and the ETERNUS DX200 S4 controller module for standard models.
The Memory Extension must be ordered if the ETERNUS DX100 S4 controller module for SAN con-
nections, the ETERNUS DX200 S4 controller module for economy models, or the ETERNUS DX100
S3/DX200 S3 is used.
Unified kit/Unified License cannot be installed if the Deduplication/Compression function is used.
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
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