Managing Serviceguard Seventeenth Edition, First Reprint December 2009

You cannot halt a package unless all packages that depend on it are down. If you try,
Serviceguard will take no action, except to send a message indicating that not all
dependent packages are down. Before you halt a system multi-node package, or halt
all instances of a multi-node package, halt any packages that depend on them
Moving a Failover Package
You can use Serviceguard Manager, or Serviceguard commands as shown below, to
move a failover package from one node to another.
Using Serviceguard Commands to Move a Running Failover Package
Before you move a failover package to a new node, it is a good idea to run cmviewcl
-v -l package and look at dependencies. If the package has dependencies, be sure
they can be met on the new node.
To move the package, first halt it where it is running using the cmhaltpkg command.
This action not only halts the package, but also disables package switching.
After it halts, run the package on the new node using the cmrunpkg command, then
re-enable switching as described under “Using Serviceguard Commands to Start a
Package” (page 315).
Changing Package Switching Behavior
There are two options to consider:
• Whether the package can switch (fail over) or not.
• Whether the package can switch to a particular node or not.
For failover packages, if package switching is set to NO the package cannot move to
any other node; if node switching is set to NO, the package cannot move to that particular
node. For multi-node packages, if package switching is set to NO, the package cannot
start on a new node joining the cluster; if node switching is set to NO, the package cannot
start on that node.
Both node switching and package switching can be changed dynamically while the
cluster is running. The initial setting for package switching is determined by the auto_run
parameter, which is set in the package configuration file (page 265). If auto_run is set to
yes, then package switching is enabled when the package first starts. The initial setting
for node switching is to allow switching to all nodes that are configured to run the
package.
You can use Serviceguard Manager to change package switching behavior, or
Serviceguard commands as shown below.
Changing Package Switching with Serviceguard Commands
You can change package switching behavior either temporarily or permanently using
Serviceguard commands. To temporarily disable switching to other nodes for a running
Managing Packages and Services 317