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

3 Configuring complex workloads using SADTA
SADTA enables deploying complex workloads in a Metrocluster. Complex workloads are
applications configured using multi-node and failover packages with dependencies. For more
information on SADTA, see Understanding and Designing Serviceguard Disaster Recovery
Architectures at http://www.hp.com/go/hpux-serviceguard-docs.
Figure 11 Web Server Configured as a Complex Workload
Metrocluster
Node 1 Node 2
Disk Array
Active Application
Configuration
Data Replication
Passive Application
Configuration
Site A
Site A Apache
WWW
Site Safety
Latch
Site Safety
Latch
Site A Mount Point
Node 1 Node 2
Disk Array
Site B
Site B Apache
WWW
Site B Mount Point
Site B Disk Group
Site B CFS Sub ClusterSite A CFS Sub Cluster
SG CFS SMNP
Site
Controller
Site A Disk Group
Figure 11 (page 35) shows SADTA configuration with a web server. The subsequent sections
describe steps to configure a complex workload using SADTA.
Creating a Site Aware Metrocluster configuration
Creating a Serviceguard cluster with sites configured
To create a Serviceguard cluster with the sites configured:
1. Run the cmquerycl command from any node to create a cluster configuration.
2. Edit the created cluster configuration file to specify the site configuration.
Following is a sample of the configuration file:
SITE_NAME <site1>
SITE_NAME <site2>
NODE_NAME <site1_node1>
Creating a Site Aware Metrocluster configuration 35