Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy

simple way to deploy Metrocluster modules in supported toolkit applications. For detailed information
about the Package Easy Deployment feature, see Using Easy Deployment in Serviceguard and
Metrocluster Environments available at http://www.hp.com/go/hpux-serviceguard-docs —> HP
Serviceguard.
The advantage offered by the Package Easy Deployment feature is that you are not required to
enter any of the Metrocluster module parameters in the modular package configuration file. The
appropriate Metrocluster module along with proper values for its parameters is automatically
inserted into the package configuration file based on the type of disks used by the supported toolkit
application.
If the disks used are HP 3PAR storage disks and are replicated,, then the dts/3parrc module
is automatically inserted into the package configuration file.
The following dts/mcxpca parameters are auto-discovered.
• DC1_NODE_LIST
• DC2_NODE_LIST
• DC1_STORAGE_SYSTEM_NAME
• DC2_STORAGE_SYSTEM_NAME
• DC1_STORAGE_SYSTEM_USER
• DC2_STORAGE_SYSTEM_USER
• DC1_RC_VOLUME_GROUP
• DC2_RC_VOLUME_GROUP
• DC1_RC_TARGET_FOR_DC2
• DC2_RC_TARGET_FOR_DC1
• dts/dts/dts_pkg_dir is automatically set to /etc/cmcluster/<package_name>
The default values are used for the remainingdts/3parrc module attributes.
The following prerequisites and limitations are applicable to the package easy deployment for
Metrocluster with 3PAR Remote Copy.
Prerequisite
1. Supported version of HP 3PAR Inform OS CLI client must be installed on all the nodes of the
cluster.
2. Symbolic link /usr/bin/cli must be created to refer to HP 3PAR Inform OS CLI installation
directory /opt/3PAR/.
3. Password files of HP 3PAR Inform OS CLI for both primary and secondary 3PAR arrays are
generated, and copied to all the nodes of the cluster under the path /opt/cmcluster/
toolkit/SG3PARRC. The password files can be generated using the utility
setupMC3PARpasswdfile under the path /opt/cmcluster/toolkit/SG3PARRC/utils
directory.
4. The replication pair must have been created already.
5. SCSI management and diagnostic tool scsimgr is installed.
6. The Metrocluster version in all the nodes of the cluster is Metrocluster 3PARRC A.00.01
PHSS_43442 or superseding patch.
Restrictions
1. The value displayed in the output of the Inform OS CLI command "showhost" for the heading
"Name" must be the same as the node name in the cluster configuration.
2. If the physical disks are configured with enclosure-based naming, then the Easy Deployment
of Metrocluster 3PARRC is not supported.
Creating the cluster 13