Chapter 3 Notes
3.7 Jumbo Frame Setting Notes
ETERNUS DX Disk storage systems User’s Guide -Server Connection- (iSCSI) for VMware® ESX
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Copyright 2012 FUJITSU LIMITED P3AM-3412-11ENZ0

Example of a network address configuration

3.7 Jumbo Frame Setting Notes
•To enable Jumbo Frame, all the connected devices must support Jumbo Frame. Set the
appropriate values for various parameters (such as the MTU size) on each connected device.
•For details about how to set Jumbo Frame for a LAN card and LAN switch, refer to the
VMware ESX and each device's manuals. Rebooting the server may be required to apply the
new settings.
•The MTU size that is supported by the ETERNUS DX60/DX60 S2, DX80/DX80 S2, and DX90
S2 is 9000 bytes.
3.8 LAN Switch Setting Notes
When using a LAN switch that supports the flow control function, disable the flow control function
according to the following notes:
•For access paths that use iSCSI, disable the flow control function on the sending and
receiving ends of the port.
•When a cascade connection is used to connect to LAN switches, disable the function for the
LAN switch that is directly connected to the ETERNUS DX Disk storage system.
For details on how to set the flow control function of the LAN switch, refer to the LAN switch man-
ual.
ETERNUS DX Disk storage system
LAN switch #1
(VLAN is
recommended)
Server A Server B
CM0 CM1
P0 P1P0 P1
192.168.30.10/24
192.168.10.10/24
192.168.30.1/24
192.168.40.1/24
192.168.40.10/24
192.168.20.10/24
192.168.10.1/24
192.168.20.1/24
LAN switch #2
(VLAN is
recommended)