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IBM System Storage DR550 Version 3.0 ------17 March 2006 Page 65
IBM Storage Systems Copyright © 2006 by International Business Machines Corporation
address 100.100.51.121. In the Network MASK (hexadecimal or dotted decimal) field, type the
network mask 255.255.255.0 of the new network. Press Enter.
Check the result of the command at the COMMAND STATUS window of SMIT. The Command
field shows OK while the text below says en3 changed. Escape SMIT by pressing F10.
Step 6 - Connect to drs_engine2 through the management console (Engine2)
1. Use the PrtSc key on the Keyboard Video Mouse (KVM) keyboard to reach the console. Select
drs-engine2 (or whatever name you are using). Login to the P5 520 with user dr550. . Hit Enter
to get the login screen.
Login dr550
Password xxxxxx
2. Once successfully logged on as dr550, issue the AIX command su - root to switch to root. Now
you have the necessary AIX system rights to change the network settings and to reconfigure
HACMP.
su – root
Password xxxxxx
Step 7 - Edit the /etc/hosts file on drs_engine2
1. First of all create a copy of the /etc/hosts file that is shipped from factory with the AIX command
cp /etc/hosts /etc/hosts.factory.
2. Open the /etc/hosts file with an editor of your choice, for instance use vi (AIX command to start vi
and open the file is vi /etc/hosts).
If you are not familiar with AIX editors, we suppose you use xedit, an X-window based editor.
For the latter, you first need to start an X-session. Start the X-session with the AIX command
startx (see startx manpages for details by issuing man startx). Then open the /etc/hosts file with
the AIX command xedit /etc/hosts, this will open a graphical editor session.
Change the all the preconfigured addresses according to the table you have prepared in Step1.
Only change these addresses, do not change addresses not listed in the table above, or any
words in the /etc/hosts file. Change the addresses in all stanzas of the /etc/hosts file. That is, you
have to change five addresses.
3. Save the file and exit the editor by pressing Save and Close on the scroll bar.
Step 8 - Change the TCP/IP addresses for the interfaces en2 and en3
1. From the AIX command line start SMIT Change / Show Characteristics of a Network Interface
with the command smitty chinet.
Select the first network interface you want to change, for instance en2, until it is highlighted.
Press Enter to change. In the INTERNET ADDRESS (dotted decimal) field, type the new IP
address 100.100.52.111. In the Network MASK (hexadecimal or dotted decimal) field, type the
network mask 255.255.255.0 of the new network. Press Enter.
Check the result of the command at the COMMAND STATUS window of SMIT. The Command
field shows OK while the text below says en2 changed. Escape SMIT by pressing F10.
2. From the AIX command line start SMIT Change / Show Characteristics of a Network Interface
with the command smitty chinet.