Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

be installed on all nodes in the Continentalclusters. If Metrocluster with EMC SRDF is not installed
on all the nodes, then the following error message is displayed:
The file <complete_path_to_module_file> does not exist or read/search
permission not set for a component of the path:
No such file or directory /etc/cmcluster/modules/dts/mc.2:4: Could not
find include .......
When configuring modular packages with EMC SRDF, only the package configuration file needs
to be edited. All parameters that were previously available in the Metrocluster environment file are
now configured from the package configuration file. The Metrocluster environment file is
automatically generated on all nodes when the package configuration is applied in the cluster.
CAUTION: Do not delete the Metrocluster environment file that is generated in the package
directory. This file is crucial for the startup of the package in a Continentalclusters.
Complete the following steps to configure primary and recovery packages as modular packages
using EMC SRDF with Continentalclusters A.08.00:
1. Run the following command to create an SRDF modular package configuration file:
# cmmakepkg –m dts/ccsrdf temp.config
2. Edit the following attributes in the temp.config file:
• dts/dts/dts_pkg_dir
This is the package directory for the modular package. The Metrocluster environment file
is generated for this package in this directory. This value must be unique for all packages.
For example
dts/dts/dts_pkg_dir=/etc/cmcluster/<package_name>
• AUTO_RUN
Set the value of this parameter to no.
There are additional parameters available in the package configuration file. It is recommended
that the default values of these variables are retained unless there is a specific business
requirement to change them. For more information on the additional parameters, see
Appendix C (page 491).
3. Halt the package.
# cmhaltpkg <package_name>
4. Validate the package configuration file.
# cmcheckconf -P temp.config
5. Apply the package configuration file.
# cmapplyconf -P temp.config
6. Run the package on a node in the Serviceguard cluster.
# cmrunpkg -n <node_name> <package_name>
7. Enable global switching for the package.
# cmmodpkg -e <package_name>
Once the package is created, if the value of any parameter needs to be changed, then edit this
package configuration file and re-apply it.
Migrating legacy style primary and recovery packages to modular packages using EMC SRDF
Continentalclusters legacy packages can be migrated to modular packages using the procedure
listed in this section. However, the migration steps vary based on the HP Serviceguard version and
72 Designing Continentalclusters