Managing Serviceguard A.11.20, March 2013

8. Restart the package:
cmrunpkg pkg1
Excluding Modules in Partial-Startup Maintenance Mode
In the example above, we used cmrunpkg -m to run all the modules up to and including
package_ip, but none of those after it. But you might want to run the entire package apart from
the module whose components you are going to work on. In this case you can use the -e option:
cmrunpkg -e sg/service pkg1
This runs all the package's modules except the services module.
You can also use -e in combination with -m. This has the effect of starting all modules up to and
including the module identified by -m, except the module identified by -e. In this case the excluded
(-e) module must be earlier in the execution sequence (as listed near the top of the package's
configuration file) than the -m module. For example:
cmrunpkg -m sg/services -e sg/package_ip pkg1
NOTE: The full execution sequence for starting a package is:
1. The master control script itself
2. External pre-scripts
3. Volume groups
4. File systems
5. Package IPs
6. External scripts
7. Services
Reconfiguring a Cluster
You can reconfigure a cluster either when it is halted or while it is still running. Some operations
can only be done when the cluster is halted. Table 15 shows the required cluster state for many
kinds of changes.
Table 15 Types of Changes to the Cluster Configuration
Required Cluster StateChange to the Cluster Configuration
All systems configured as members of this cluster must be
running.
Add a new node
A node can be deleted even though it is unavailable or
unreachable.
Delete a node
Cluster can be running.Add a volume group
Cluster can be running. Packages that use the volume group
will not be able to start again until their configuration is
modified.
Delete a volume group
Cluster can be running.Change Maximum Configured Packages
Cluster can be running; see the NOTE below this table and
“What Happens when You Change the Quorum Configuration
Online” (page 50).
Change Quorum Server Configuration
Cluster can be running; see “Updating the Cluster Lock
Configuration” (page 300), “What Happens when You Change
Change Cluster Lock Configuration (LVM lock disk)
the Quorum Configuration Online” (page 50), and the NOTE
below this table.
Cluster can be running. See “Updating the Cluster Lock LUN
Configuration Online” (page 300), “What Happens when You
Change Cluster Lock Configuration (lock LUN)
296 Cluster and Package Maintenance