Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access EVA P6000 for Linux B.12.00.00

2 Configuring an application in a Metrocluster environment
Installing the necessary hardware and software
When the following procedures are complete, an adoptive node will be able to access the data
belonging to a package after it fails over.
Setting up the storage hardware
1. Before you configure this product, you must correctly cable the P6000/EVA with redundant
paths to each node in the cluster that will run packages accessing data on the array.
2. Install and configure the hardware components of the P6000/ EVA, including HSV controllers,
disk arrays, SAN switches, and Management Server.
3. Install and configure HP P6000 Command View and SMI-S EVA on the Management Server.
For the installation and configuration process, see the HP P6000 Command View Installation
Guide.
Installing the necessary software
Before you configure a Metrocluster, make sure the following software is installed on all nodes:
• Serviceguard for Linux B.12.00.00 or later
• Metrocluster with Continuous Access EVA P6000 for Linux
See the Release Notes and Compatibility and Feature Matrix available at http://www.hp.com/
go/linux-serviceguard-docs for the latest patches available for the above mentioned software.
Creating the cluster
NOTE: The file /etc/cmcluster.conf contains the mappings that resolve symbolic references
to $SGCONF, $SGROOT, $SGLBIN, etc. used in the pathnames in the following subsections. If
the Serviceguard variables are not defined on your system, then include the file /etc/
cmcluster.conf in your login profile for the root user. For more information on these parameters,
see Understanding the Location of Serviceguard Files and Enabling Serviceguard Command Access
in Managing HP Serviceguard B.12.00.00 for Linux available at http://www.hp.com/go/
linux-serviceguard-docs .
Create a Serviceguard cluster with components on multiple sites according to the process described
in the Managing HP Serviceguard B.12.00.00 for Linux available at http://www.hp.com/go/
linux-serviceguard-docs .
NOTE: A configuration with a Lock Lun is not supported in a Metrocluster environment.
Site Aware Failover Configuration
Serviceguard cluster allows sites to be configured in a Metrocluster environment. The Serviceguard
cluster configuration file includes the following attributes shown in Table 1 (page 11) to define
sites. This enables to use the package failover policiessite_preferred_manual or
site_preferred for Metrocluster package.
Table 1 Site Aware Failover Configuration
DescriptionAttributes
To define a unique name for a site in the cluster.SITE_NAME
SITE keyword under the node's NODE_NAME definition.SITE
Installing the necessary hardware and software 11