HP-Unix 11.0 Cluster Problem

[Jacky Wong_1]

Dear All,
I have 2 server one is called first01 and second is called first02. They have preformed cluster server function. But after I change the I.P. on both server. They lost cluster function. On first02 server, everytime when I use SAM-->Cluster-->Cluster Administration. I got below error message : "Fail to bind address 192.168.1.246 with socket: can't assign request address (227)." 192.168.1.246 is old I.P. I already change to new I.P. that anywhere appear this I.P.in first02. Am I miss any part that not yet to change the new I.P.?
On first01 Cluster, it show it cannot find first02 node. But I can ping first02 node in first01 node. Why it cannot see in Cluster Administration Program?

[melvyn burnard]

So having changed the system IP addresses, have you checked that they still have the old addresses, or the new ones? netstat -in helps
If you have changed ip addresses, have you changed the hosts files? or DNS?
If these all work, then you need to check all the steps you have taken.
The next question is have you changed the ip addresses in the Cluster ascii file, to coinfigure these into the new cluster binary, and checked it with cmcheckconf?

[Kenny Chau · Accepted solution]

Hi Jacky,

Maybe you can try to use cmquerycl and cmcheckconf command to check the configuration of your cluster first. Then try to figure out where had missed.

Maybe you had changed the ip address but did not apply to the cluster. To apply to cluster, use command cmapplyconf.

Please man those commands for usage.

Hope this helps.
Kenny.

[Marcin Wicinski]

Hi,
Changing an IP of a cluster node implicate changes in:
- /etc/rc.config.d/netconf
- /etc/hosts
- dns
- /etc/cmcluster/
- if the new IP falls in another subnet you have to change SUBNET in package configuration files
- execute cmcheckconf
- execute cmapplyconf (cluster sevices must be stopped).
Later,

[Sanjay_6]

Hi,

you may have to do a cmqueycl and cmapplyconf again to reapply the new ip info to the cluster. I think the cluster stores the old ip add and the mac add etc of the card in binary format in the cluster config file. If you change the ip add on the cards being used in the cluster, you have to reapply the cluster config.

Hope this helps.

Regds

[Jacky Wong_1]

Dear Marcin Wicinski,

Everytime when I execute cmcheckconf and cmapplyconf, it also appear the error message "Fail to bind address 192.168.1.246 with socket: can't assign request address (227)." I checked the netstat -in, host table and DNS. All Old IP address already changed. Why the server still try to bind this old I.P. it the socket? Any idea of it? Many thanks.

Regards,

Jacky

[Sanjay_6]

Hi Jacky,

you have to do a cmqueycl first and create a new ascii conf file. Moidify the new file and update the info from the old conf file. Include the new ip's in this new ascii conf file and then do a cmcheckconf and cmapplyconf.

Hope this helps.

Regds

[Roger Baptiste]

Hi,

Pls check the following link on changing IP address for the cluster:

http://us-support2.external.hp.com/cki/bin/doc.pl/sid=9515ac8b070e03b0eb/screen=ckiDisplayDocument?docId=200000058849613

HTH
raj