HP Serviceguard manual Reconfiguring a Package, Configuring monitoredsubnetaccess

Configuring monitored_subnet_access

In order to monitor subnet 15.244.65.0 or 15.244.56.0, you would configure

monitored_subnet and monitored_subnet_access in pkg1’s package configuration file as follows:

monitored_subnet 15.244.65.0 monitored_subnet_access PARTIAL monitored_subnet 15.244.56.0 monitored_subnet_access PARTIAL

NOTE: Configuring monitored_subnet_access as FULL (or not configuring monitored_subnet_access) for either of these subnets will cause the package configuration to fail, because neither subnet is available on all the nodes.

Creating Subnet-Specific Package Control Scripts

Now you need to create control scripts to run the package on the four nodes.

IMPORTANT: In a cross-subnet configuration, you cannot share a single package control script among nodes on different subnets if you are using relocatable IP addresses. In this case you will need to create a separate control script to be used by the nodes on each subnet.

In our example, you would create two copies of pkg1’s package control script, add entries to customize it for subnet 15.244.65.0 or 15.244.56.0, and copy one of the resulting scripts to each node, as follows.

Control-script entries for nodeA and nodeB

IP[0] = 15.244.65.82

SUBNET[0] 15.244.65.0

IP[1] = 15.244.65.83

SUBNET[1] 15.244.65.0

Control-script entries for nodeC and nodeD

IP[0] = 15.244.56.100

SUBNET[0] = 15.244.56.0

IP[1] = 15.244.56.101

SUBNET[1] = 15.244.56.0

Reconfiguring a Package

You reconfigure a package in much the same way as you originally configured it; for modular packages, see Chapter 6: “Configuring Packages and Their Services ” (page 227); for legacy packages, see “Configuring a Legacy Package” (page 302).

The cluster, and the package itself, can be either halted or running during package reconfiguration; see “Reconfiguring a Package on a Running Cluster ” (page 311). The types of changes that can be made and the times when they take effect depend on whether the package is running or not; see “Allowable Package States During Reconfiguration ” (page 314). For information on changes

310 Cluster and Package Maintenance