AIX HACMP Virtual IP vs. Real IP differentiation

Posted on 2007-07-31
Last Modified: 2013-11-17
I am running on an AIX HACMP cluster, and need to know if the IP address I have connected with is the "real" address for the matchine, or a virual one assigned in a resource group.  I am looking for an easy way to tell (is the real address always the first one listed for an adapter with the "ifcfg -a" command?).
Question by:rboudrie
    LVL 14

    Accepted Solution

    There is no such thing in TCP/IP as a "real" address. Depending on the cluster setup and Version.Release.Modification (VRM) of HACMP, addresses are defined to HACMP as either boot or service or standby or shared or as service or base. It is only the service addresses which belong to resource groups that HACMP attempts to preserve across changes in topology.

    The easiest way to tell that an address is a service address in a resource group is to log into the server and use the HACMP command "cllsif" and look for the service addresses. However, you should note that this command is not supported by IBM since HACMP 5.1.
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