4.1.0 HP PolyServe Matrix Server administration guide (T5392-96073, October 2010)

Delete a virtual host
Select the virtual host to be deleted on either the Servers window or the Virtual Hosts
window, right-click, and select Delete. Any service monitors configured on that virtual
host are also deleted.
To delete a virtual host from the command line, use this command:
mx vhost delete <vhost> ...
Change the virtual IP address for a virtual host
When you change the virtual IP address of a virtual host, you will also need to update
your name server and to configure applications to recognize the new virtual IP
address. The order in which you perform these tasks is dependent on your application
and the requirements of your site.
You can use mx commands to change the virtual IP address of a virtual host. Complete
these steps:
1. At the command prompt, run the following command:
mx matrix dump > mxdump.out
2. Edit the mxdump.out file, replacing all occurrences of the old IP address with
the new IP address.
3. At the beginning of the mxdump.out file, add a line such as the following to
remove the old IP address from the virtual host configuration:
vhost delete <old_IP_address>
4. Delete any lines in mxdump.out that do not need to change.
5. Run the following command to update the cluster configuration with the new IP
address:
mx --file mxdump.out
Virtual hosts and failover
When you create a virtual host, you specify a list of network interfaces on which the
virtual host can be located. The interfaces are placed in order: primary, backup #1,
backup #2, and so on. The ClusterPulse process considers the “health” of the servers
providing those interfaces when determining where to place a virtual host. The status
Configure virtual hosts196