Chapter 4. IBM System Storage DS planning and configuration 161
4.8.3 Configuring IP addresses of the controllers
By default, the DS5000 storage subsystem will try the BOOTP/DHCP service to request an IP
address. If no BOOTP/DHCP service is found in the network, the controllers revert to fixed IP
addresses. By default, the fixed addresses are:
Controller A: 192.168.128.101
Controller B: 192.168.128.102
The DS5000 storage subsystem has two Ethernet ports per controller. Use one Ethernet port
for daily management of your DS5000 storage subsystem. Reserve the other port for use by
service personnel or for subsystem monitoring hardware that might be available in the future.
The default IP addresses of the additional Ethernet ports are:
Controller A: 192.168.129.101
Controller B: 192.168.129.102
See the specific Ethernet port locations with their default IP addresses in Figure 4-24.
Figure 4-24 DS5000 storage subsystem default IP addresses
Given the importance of the storage subsystems in any environment, we recommend that an
IP address be assigned to them rather than relying on a BOOTP/DHCP dynamic address.
There are two ways to change the IP addresses of the controllers by changing them with the
Storage Manager utility:
Using out-of-band management (recommended)
Using in-band management
We describe both methods in the following sections.
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