User's Guide

If you do not want the package to fail upon device group monitoring failures, you can
set the service_restart to unlimited.
4. Validate the package configuration file.
# cmcheckconf -P pkgName.config
5. Apply the package configuration file.
# cmapplyconf -P pkgName.config
After the modular primary package is created in the primary cluster, if the value of any 3DC
parameter needs to be changed, then edit this package configuration file and re-apply it.
Starting the primary packages in the primary cluster
Ensure all Continuous Access Device groups are paired appropriately according to their 3DC
topology. Start all the primary packages at their DC1 site in the primary cluster, using the cmrunpkg
command
Installing and configuring the application at the recovery cluster
Install and configure the application in the recovery cluster. The application must be configured at
the recovery cluster using the replicated disks at the recovery cluster.
Configuring Recovery Packages in the Recovery Cluster
A recovery package must be created using Metrocluster 3DC recovery module
dts/recovery_xpca3dc. All 3DC parameters must be configured in the recovery package
configuration file itself. There is no need to edit the Metrocluster environment file. The
Metrocluster environment file is automatically generated on all nodes when this package
configuration is applied in the cluster.
CAUTION: Do not delete or edit the Metrocluster environment file that is generated. This
file is crucial for 3DC operations.
Complete the following procedure on a node in the recovery cluster to configure a recovery package
using the 3DC modules:
1. Create a modular recovery package configuration file using the Metrocluster with Continuous
Access for P9000 and XP 3DC recovery module dts/recovery_xpca3dc along with the
required modules:
# cmmakepkg –m dts/recovery_xpca3dc pkgName.config
When deploying complex workloads, configure the Site Controller package as recovery
package and include dts/recovery_xpca3dc along with the dts/sc module:
# cmmakepkg –m dts/recovery_xpca3dc –m dts/sc pkgName.config
By default, the Metrocluster 3DC recovery module includes only the Serviceguard volume
group module. If other Serviceguard or Toolkit modules need to be included, they need to be
explicitly specified while creating the Metrocluster 3DC modular package configuration file.
2. Edit the following attributes in the pkgName.config file:
a. Specify the package directory for the dts/dts/dts_pkg_dir attribute:
dts/dts/dts_pkg_dir /etc/cmcluster/pkg
The Metrocluster Environment file is automatically generated for this package in this
directory.
b. Specify the value for the 3DC_TOPOLOGY parameter based on the configuration used:
For Tri-Link configuration, specify Tri-Link:
3DC_TOPOLOGY Tri-Link
For Multi-Target Bi-Link configuration, specify "multi-target-bi-link":
Configuring an P9000 or XP 3DC DR Solution 445