IP addresses of the LAN ports are not assigned to each CM. These IP addresses are assigned to the
role of master or slave. If the Master CM is switched, the same IP addresses are reused. Therefore,
even if the Master CM is switched and the physical port is changed, access can be maintained via
the same IP addresses. The MAC address is not inherited.
Figure 99 LAN Control (Switching of the Master CM)
Controller enclosure
MNT
CM#0
Master CM
MNT
CM#1
Slave CM
Controller enclosure
MNT
RMT RMT
RMT RMT
CM#0
Slave CM
MNT
CM#1
Master CM
IP address A
IP address A
ETERNUS DX
ETERNUS DX
The Master CM is switched.
CM#0
has failed
When the Master CM is
switched, the IP addresses
of the previous Master CM
are taken over by the new
Master CM.
•
Each CM has an LED that lights up green to identify when it is the Master CM.
•
Setting the IP address of the Slave CM ensures that ETERNUS Web GUI or ETERNUS CLI can be
used from the Slave CM if an error occurs on the LAN path for the Master CM.
The Master CM and the Slave CM perform different functions. The Slave CM can only switch
the Master CM and display the status of the
ETERNUS DX.
The IP address of the Slave CM does not need to be set for normal operation.
Figure 100 LAN Control (When the IP Address of the Slave CM Is Set)
Controller enclosure
MNT
CM#0
CM#1
RMT
RMT
MNT
ETERNUS DX
LAN path
error
Master CM Slave CM
IP ad
dress A IP address B
The IP address of the Slave CM
is used to switch the Master CM
and display the status
of the ETERNUS DX.
4. Connection Configuration
LAN Connection
162
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems
Design Guide (Basic)
Copyright 2023 Fujitsu Limited
P3AM-7642-32ENZ0