Managing HP Serviceguard for Linux, Eighth Edition, March 2008

Building an HA Cluster Configuration
Configuring the Cluster
Chapter 5 175
Obtaining Cross-Subnet Information
As of Serviceguard A.11.18 it is possible to configure multiple subnets,
joined by a router, both for the cluster heartbeat and for data, with some
nodes using one subnet and some another. See “Cross-Subnet
Configurations” on page 30 for rules and definitions.
You must use the -w full option to cmquerycl to discover the available
subnets.
For example, assume that you are planning to configure four nodes,
NodeA, NodeB, NodeC, and NodeD, into a cluster that uses the subnets
15.13.164.0, 15.13.172.0, 15.13.165.0, 15.13.182.0, 15.244.65.0,
and 15.244.56.0.
The following command
cmquerycl –w full –n nodeA –n nodeB –n nodeB –n nodeC –n nodeD
will produce the output such as the following:
Node Names: nodeA
nodeB
nodeC
nodeD
Bridged networks (full probing performed):
1 lan3 (nodeA)
lan4 (nodeA)
lan3 (nodeB)
lan4 (nodeB)
2 lan1 (nodeA)
lan1 (nodeB)
3 lan2 (nodeA)
lan2 (nodeB)
4 lan3 (nodeC)
lan4 (nodeC)