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

1. Log in to the node where the Site Controller package is running, and then go to the Site
Controller Package directory.
# cd <dts/dts/dts_pkg_dir>
2. Run the HP-UX touch command with the DETACH flag in the Site Controller package directory.
# touch DETACH
3. Halt the Site Controller Package.
# cmhaltpkg <site_controller_package_name>
4. Log in to the other node in the local site, and then start the Site Controller package.
# cmrunpkg <site_controller_package_name>
Maintaining Site Controller package
The Site Controller package is a Serviceguard failover package. Halting the Site Controller package
halts the workload packages and closes the Site Safety Latch on the site. The DETACH mode flag
allows the Site Controller package to halt without halting the workload packages.
Steps to halt the Site Controller Package in the DETACH mode as follows:
1. Identify the node where the Site Controller package is running.
# cmviewcl –p <site_controller_package_name>
2. Log in to the node where the Site Controller package is running, and then go to the Site
Controller package directory.
# cd <dts/dts/dts_pkg_dir>
3. Run the HP-UX touch command with the DETACH flag in the Site Controller package directory
# touch DETACH
4. Halt the Site Controller package.
# cmhaltpkg <site_controller_package_name>
The Site Controller package halts without halting the complex workload packages. The Site Controller
package leaves the Site Safety Latch open on this site. The DETACH mode file is automatically
removed by the Site Controller package when it halts. After the maintenance procedures are
complete, restart the Site Controller package on the same site where it was previously halted in
the DETACH mode. You cannot start the Site Controller package on a different site node. Run the
following command to start the Site Controller package:
# cmrunpkg <site_controller_package_name>
Enable global switching for the Site Controller Package.
# cmmodpkg –e <site_controller_package_name>
When the Site Controller package is halted in the DETACH mode, the active complex workload
configuration on the site can be halted and restarted at the same site as the Site Safety Latch is
still open in the site.
Deleting the Site Controller package
Steps to delete Site Controller package in a cluster as follows:
1. Halt the Site Controller package.
2. Remove all the Site Safety Latch dependencies configured for the packages managed by the
Site Controller package.
Also remove the Site Controller EMS resource dependency from packages managed by the
Site Controller packages on both sites.
Administering the SADTA configuration 51