Chapter 3 Connections
3.1 Host Connections
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
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Copyright 2011 FUJITSU LIMITED
P3AM-4822-03ENZ0
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Jumbo Frame
Enabling Jumbo Frame makes data transfer more efficient by increasing the amount of data
that can be transferred for each Frame.
Table 3.1
Ethernet frame capacity (Jumbo Frame settings)
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Security Architecture for Internet Protocol (IPsec)
The IPsec function is not supported. Connect the server using a LAN switch that has the
IPsec function as required.
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FCoE
Fabric is supported as a connection topology. The maximum transfer speed is 10Gbit/s. When
using an FCoE interface, connect the ETERNUS DX Disk storage system to the FCoE switch.
Direct connections to servers are not supported.
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VLAN
The VLAN function is supported.
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SAS
Simple, cost effective, and high performance network storage environment can be configured.
Direct connections and switch connections to servers are available.
The maximum transfer speed is 6Gbit/s.
3.1.2
Host Connection Path
This section explains the connection configuration between a server Host Bus Adapter (HBA)
and an ETERNUS DX Disk storage system host interface port.
Jumbo Frame settings
Ethernet frame capacity
Enabled
Up to 9000 bytes
Disabled
Up to 1500 bytes
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Confirm that the connected device supports Jumbo Frame before
enabling Jumbo Frame.
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Server-side CPU load can be reduced by using Jumbo Frame.
However, I/O performance may be reduced by 10% to 30%.
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Perform zoning settings for FCoE switches.
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When an FCoE interface is used for the HBA of the server, use FCoE for
the host interface of the ETERNUS DX Disk storage system.
When SAS switches are used, zoning should be set for the SAS switches
to ensure the security of data.
