4.0.0 HP Polyserve Matrix Server Administration Guide (T5392-96052, March 2010)

If multiple interface failures occur on a server and there is not another network
available for the administrative network, the server may drop out of the cluster. The
remaining servers will continue to use the existing administrative network.
Making network changes
The following network changes should not be made while Matrix Server is running.
Attempting to do any of the following can adversely affect the entire matrix. If you
need to perform these actions on a particular server, first stop Matrix Server on that
server. Then make your change and restart Matrix Server.
• Add or delete a network interface from the operating system.
• Change network properties on the Network Control Panel.
• Disable or re-enable a network interface via the Device Manager.
• Update network drivers.
• Hot-swapping of network cards.
Allow, discourage, or exclude administrative traffic
By default, all network interfaces allow administrative traffic. However, you can
specify which networks you prefer to use for this traffic. For performance reasons,
HP recommends that these networks be isolated from the networks used by external
clients to access the cluster.
To allow or discourage administrative traffic on a network interface, select that
network interface on the Servers window, right-click, and then select either Allow
Admin. Traffic, Discourage Admin. Traffic, or Exclude Admin Traffic as appropriate.
The setting is applied to all interfaces within the same subnet on all servers of the
cluster.
On the command line, issue the appropriate mx netif command:
mx netif allowadmintraffic <interface_ip> ...
mx netif discourageadmintraffic <interface_ip> ...
mx netif excludeadmintraffic <interface_ip> ...
When you configure a network interface to allow, discourage, or exclude
administrative traffic, the setting applies to all interfaces within the same subnet on
all servers of the cluster.
Configure network interfaces68