Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access EVA A.05.01

1. Run the following command to create a Metrocluster with Continuous Access EVA modular
package configuration file:
# cmmakepkg –m dts/mccaeva temp.config
a.
b. If the Metrocluster package uses ECMT Toolkit, then add the corresponding ECMT module.
For example, for a Metrocluster ECMT Oracle toolkit modular package, run the following
command:
# cmmakepkg -m dts/mccaeva -m ecmt/oracle/oracle temp.config
2. Edit the following attributes in the temp.config file:
Table 3
Column HeadDescription
This is the package directory for this Metrocluster modular
package. The Metrocluster Environment file is generated for this
dts/dts/dts_pkg_dir
package in this directory. This value must be unique for all
packages.
This is a parameter used to define a policy for starting an
application. It can be set to Availability_Preferred or
Data_Currency_Preferred policy.
DT_APPLICATION_STARTUP_POLICY
This is the name of the DR group used by the package.DR_GROUP_NAME
This is the World Wide Name of the HP P6000/EVA storage
system that resides in Data Center 1.
DC1_STORAGE_WORLD_WIDE_NAME
This is a list of management servers that reside in Data Center 1.DC1_SMIS_LIST
This is a parameter used to specify a list of clustered nodes that
reside in Data Center 1.
DC1_HOST_LIST
This is the World Wide Name of the EVA storage system that
resides in Data Center 2.
DC2_STORAGE_WORLD_WIDE_NAME
This is a list of management servers that reside in Data Center 2.DC2_SMIS_LIST
This is a parameter used to specify a list of clustered nodes that
reside in Data Center 2.
DC2_HOST_LIST
There are additional Metrocluster parameters available in the package configuration file. HP
recommends that you retain the default values of these variables unless there is a specific
business requirement to change them. For more information on the Metrocluster parameters,
see Appendix B (page 84).
For the failover_policy parameter, Metrocluster failover packages can be configured to
use any of the Serviceguard defined failover policies. The site_preferred and
site_preferred_manual failover policies are introduced in Serviceguard specifically for
Metrocluster configurations.
The site_preferred value implies that when a Metrocluster package needs to fail over, it
fails over to a node in the same site as the node it last ran. If there is no other configured node
available within the same site, the package fails over to a node on another site.
The site_preferred_manual failover policy provides automatic failover of packages
within a site and manual failover across sites.
Configure a cluster with sites to use either of these policies. For information on configuring
the failover policy to site_preferred or site_preferred_manual, see “Site Aware
Failover Configuration” (page 15).
3. Validate the package configuration file.
# cmcheckconf -P temp.config
Installing and configuring an application 27