topic MC/SG in two Subnetworks in Operating System - HP-UX

MC/SG in two Subnetworks

Jose Juan — Thu, 21 Feb 2002 10:22:39 GMT

Hi gurus:

There are two Servers with MC/SG that have connection to two subnetworks.
At this moment this is configured in such a way that is possible to be acceded to the package of cluster by only one of the two subnetworks.
The intention is that the second subred can be use too.
I imagine that this is easy, simply modify the correct configuration files.
How could I do it?
The three files than i think must be modify are this:
/etc/cmcluster/cluster.conf
/etc/cmcluster/pkg1/pkg1.conf
/etc/cmcluster/pkg1/pkg1.cntl

Thanks in advance.

Re: MC/SG in two Subnetworks

melvyn burnard — Thu, 21 Feb 2002 12:54:49 GMT

You are basically correct.
You need to have the subnet configured into the cluster as a whole, therefore cluster ascii file needs to have these subnets, and the cluster applied with this.
Then you need to modify the config and control files for the specified p[ackage, ensure BOTH subnets are listed, and the relevant ip addresses to add.
Then apply the package configuration.
Dont forget to make the change to BOTH nodes, and also lookout for the fact that you will need to set the array variable correctly, i.e
SUBNET[0]
SUBNET[1]

HTH

Re: MC/SG in two Subnetworks

Jose Juan — Thu, 21 Feb 2002 15:30:04 GMT

My bigest problem is know what file or files i must modify.
I don't know if this three files:

/etc/cmcluster/cluster.conf
/etc/cmcluster/pkg1/pkg1.conf
/etc/cmcluster/pkg1/pkg1.cntl

or only

/etc/cmcluster/pkg1/pkg1.cntl

Re: MC/SG in two Subnetworks

melvyn burnard — Thu, 21 Feb 2002 15:38:18 GMT

It depends what you are adding.
If the subnet is not even in the cluster, you must first add it to the cluster configuration.If it already exists, then you need to ensure it is in the package configuration file, and if you want to add an ip address, make sure you also put this in the control file.