service guard error:Error:Invalid subnet 192.168.5.0 in package XXXX

[study unix]

Hi,
Meet one question as below,
I revise physical ip and floating ip address for one service guard,
one step is to revise /etc/host and then to modify cmclconfig.ascii file,
the next step is to cmcheckconf with following error:
Error:Invalid subnet 192.168.5.0 in package XXXX,
I guess if it needs to remove cmclconfig.ascii then to implement the command cmcheckconf and cmapplyconf ?

[AnthonySN]

yes you need to delete cmclconfig.ascii and do a cmcheckconf

[study unix]

HI SASJ,
I do not understand why it needs to delete delete cmclconfig.ascii ,if I complete the command "cmdeleteconf " should remove binary file /etc/cmcluster/cmclconfig not cmclconfig.ascii?

[melvyn burnard]

why remove the entire cluster binary? Have you chnaged the physical iP address of a card in the cluster? If so you should be able to update your cluster ascii file and use cmapplyconf to change the binary.
You then need to change the configuration file (and control script if not a modular
package) to reflect the new subnet, and then reapply the package.

If all you have done is change the subnet that the package adds an addres to, make sure you modfiy, check, and apply the package configuration.

[study unix]

Hi Melvyn,
Thanks for your response,

and now I need to do one change that physical address swithches from 192.168.5.101 to 10.234.231.1, and switches package floating adress from 192.168.5.100 to 10.234.231.10,I proceed with same error,
who can give one standard process as my reference,
thanks in advance!

[Elmar P. Kolkman]

You're problem is that you are not only changing the IP address of the cluster server, but also of the packages on it. So you need to re-create the entire cluster.

For that, do the cmdeleteconf commands given above and then re-create the cluster, or remove the packages with cmdeleteconf, apply the cluster config files and then apply the altered package configs.

[study unix]

Hi Elmar,
As your said, if it needs to change Ip address to service guard that equals to rebuild it, so that it needs to cmdeleteconf the previouse configuration file, if I understand it correct ?

[Stephen Doud]

IP addresses are located in the cluster configuration file and package configuration file (if using modular packages), or package control scripts (if using legacy packages).
The subnet value is only loaded in the package config or control file.

If a single NIC's IP on each node will be changed to a new IP, then update the cluster ASCII configuration file with the new IPs.
Also update package configuration files with the new subnet (and IP, if modular) and control script (if legacy) with the new IP/SUBNET parameters.

Then (if SG A.11.18 or older is installed), halt the cluster and perform cmapplyconf on all modified files.

If cmapplyconf cannot complete because of communication trouble, it may be that SG is trying to use the NIC with the modified IP. In that case, either cmdeleteconf the cluster, or remove /etc/cmcluster/cmclconfig on each node and rebuild the cluster.