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10-7. Changing IP Addresses on Your Exadata Database Machine
Problem
You would like to change IP addresses on your Exadata Database Machine and are looking for a step-by-step process
to change the various network configurations across your storage cells, compute nodes, InfiniBand switches, KVM
switch, internal Cisco Catalyst switch, and Power Distribution Units (PDUs).
Solution
Oracle provides step-by-step instructions for changing Exadata IP addresses for each node, switch, and component
in the database machine at My Oracle Support document 1317159.1. In this recipe, we will demonstrate how to
change IP addresses in an Exadata Quarter Rack; the same procedures can be expanded to Half Rack and Full Rack
configurations. Specifically, we will show how to do the following:
•
Prepare your Exadata Database Machine for network changes
•
Change the InfiniBand switch Ethernet IP addresses
•
Change network information in your KVM switch
•
Change network information in the embedded Cisco switch
•
Change the PDU IP addresses
•
Change Ethernet IP addresses in the storage cells
•
Change Ethernet IP addresses on the compute nodes
•
Reconfigure Oracle RAC network resources to reflect IP address changes
•
Perform post-change startup and validation
The examples in this recipe assume that we will be changing our administration, client access, and additional
networks according to Table
10-1
.
Table 10-1.
Network Changes
Network
Old Network
New Network
Administration
172.16.1.0/24
10.16.1.0/24
Client Access
172.16.10.0/24
10.16.10.0/24
Additional
172.16.20.0/24
10.16.20.0.24
■
the scope of this recipe is restricted to changing ethernet ip addresses on the nodes in your exadata database
machine. Changing hostnames and infiniBand ip addresses is outside the scope of this text. this recipe also assumes
that your business goal is to perform widespread network changes and change the ip addresses on all exadata nodes to
meet a specific network-addressing scheme. while individual servers or nodes can be re-addressed independently, this
practice is not common.
Note
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