Managing Serviceguard Sixteenth Edition, March 2009

Adding a Package to a Running Cluster
You can create a new package and add it to the cluster configuration while the cluster
is up and while other packages are running. The number of packages you can add is
subject to the value of MAX_CONFIGURED_PACKAGES in the cluster configuration
file.
To create the package, follow the steps in the chapter “Configuring Packages and Their
Services ” (page 253). Use a commands such as the following to verify the configuration
of a newly created pkg1 and distribute the configuration to all nodes in the cluster:
cmcheckconf -P /etc/cmcluster/pkg1/pkg1conf.ascii
cmapplyconf -P /etc/cmcluster/pkg1/pkg1conf.ascii
If this is a legacy package, remember to copy the control script to the/etc/cmcluster/
pkg1 directory on all nodes that can run the package.
To create the CFS disk group or mount point multi-node packages on systems that
support CFS, see “Creating the Disk Group Cluster Packages” (page 235) and “Creating
a File System and Mount Point Package” (page 237).
Deleting a Package from a Running Cluster
Serviceguard will not allow you to delete a package if any other package is dependent
on it. To check for dependencies, use cmviewcl -v -l <package>. System
multi-node packages cannot be deleted from a running cluster.
You can use Serviceguard Manager to delete the package.
On the Serviceguard command line, you can (in most cases) delete a package from all
cluster nodes by using the cmdeleteconf command. To delete one of the Veritas
Cluster File System packages, usecfscluster, cfsdgadm, or cfsmntadm. This
removes the package information from the binary configuration file on all the nodes
in the cluster. The command can only be executed when the package is down; the
cluster can be up.
The following example halts the failover package mypkg and removes the package
configuration from the cluster:
cmhaltpkg mypkg
cmdeleteconf -p mypkg
The command prompts for a verification before deleting the files unless you use the
-f option. The directory /etc/cmcluster/mypkg is not deleted by this command.
On systems that support CFS, you can remove nodes from a multi-node package
configuration using cfs commands. All the packages that depend on the multi-node
package must be halted on that node.
To remove the CFS mount point and disk group packages, follow these steps:
Reconfiguring a Package 351