IBM DR550 manual Loopback localhost

IBM System Storage DR550 Version 3.0 ------ 17 March 2006 Page 64

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, it may be easier to 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.

Scroll down to the appropriate line in the hosts file

Change all of the preconfigured addresses according to the table you have prepared in Step 1 - Ob. 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.

Custom-made /etc/hosts file on drs_engine1 and drs_engine2 (excerpt)

127.0.0.1 loopback localhost # loopback (lo0) name/address

#

#Engine 1

100.100.51.122 drs_cluster_svc

100.100.51.121 drs_engine1_boot drs_engine1		#en0
100.100.52.110 drs_engine1_stdby drs_engine1		#en1
#
#	Engine 2
#

100.100.51.123		drs_engine2_boot drs_engine2 #en0
100.100.52.111		drs_engine2_stdby	#en1
192.168.4.24	drs_engine2_FAStT1_ctrlA		#en2
192.168.5.26	drs_engine2_FAStT1_ctrlB		#en3

3.Save the file and exit the editor by pressing save and close on the scroll bar.

Step 5 - 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, en2, until it is highlighted. Press Enter to change. In the INTERNET ADDRESS (dotted decimal) field, type the new IP address 100.100.52.110. 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.

Select the second network interface you want to change, for instance en3, until it is highlighted. Press Enter to change. In the INTERNET ADDRESS (dotted decimal) field, type the new IP

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