Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP A.11.00

13. Configure a recovery package in the recovery cluster using the 3DC modules.
14. Configure Continentalclusters and Continentalclusters Recovery Group.
NOTE: This section provides information about configuring a single-instance application in a
3DC environment. For configuring a complex workload in a 3DC environment using SADTA, in
addition to this section, see section “Deploying a Complex Workload in Three Data Center Solution
using SADTA” (page 126).
Install the required software on all nodes in the 3DC DR Solution
To configure an application in the 3DC environment, all the required software products and related
patches must be installed. Install these software products and patches on all nodes in the 3DC DR
Solution.
For information about softwares required and supported versions, see Serviceguard Disaster
Recovery Products Compatibility and Feature Matrix (Metrocluster with Continuous Access for
P9000 and XP) available at http://www.hp.com/go/hpux-serviceguard-docs –> HP Serviceguard
Metrocluster with Continuous Access for P9000 and XP.
Configuring the Primary Cluster
Create a Serviceguard cluster (Metrocluster) using the nodes in Site 1 and Site 2 using the procedure
described in the Managing Serviceguard manual available at http://www.hp.com/go/
hpux-SG-docs. While deploying complex workloads using SADTA, Metrocluster must be created
with two sites defined in the cluster configuration file using the procedure described in the section
“Configuring Metrocluster with sites” (page 195). This Metrocluster acts as a primary cluster in the
Continentalclusters environment.
Configuring the Recovery Cluster
Create another Serviceguard cluster in Site 3 using the procedure described in the Managing
Serviceguard manual available at http://www.hp.com/go/hpux-SG-docs. While deploying
complex workloads using SADTA, Serviceguard cluster must be created with a single site defined
in the cluster configuration file using the procedure described in the section “Configure the Recovery
Cluster” (page 130). This cluster acts as a recovery cluster in the Continentalclusters environment.
Configuring RAID Manager in the Primary and Recovery Cluster
The P9000 or XP RAID Manager Host-based software is used to create and manage the device
group pairs in a Three Data Center configuration. The following section describes the RAID manager
configuration process.
Use the following steps to create the RAID manager configuration:
1. Edit the /etc/services file and add an entry for the Raid Manager instance that has to
be used with the cluster. The format of the entry is:
horcm<instance-number> <port-number>/udp
Example:
horcm0 11000/udp #Raid Manager instance 0.
2. Use the ioscan command to determine what devices on the P9000 or XP disk array have
been configured as command devices. There must be two command devices; a primary
command device and a secondary command device.
3. Copy the default Raid Manager configuration file to an instance-specific name:
# cp /etc/horcm.conf /etc/horcm0.conf
4. Create a minimum Raid Manager Configuration file by editing the following fields in the file
created in the previous step:
108 Designing a Three Data Center Disaster Recovery Solution