Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with Continuous Access EVA
Completing and Running a Continental Cluster Solution with Continuous Access EVA
Chapter 4272
Example 2: If the file name of the control script is
control_script.sh, the environment file name would be
control_script_caeva.env.
6. Edit the environment file <pkgname>_caeva.env as follows:
a. Set the CLUSTER_TYPE variable to CONTINENTAL
b. Set the PKGDIR variable to the full path name of the directory
where the control script has been placed. This directory, which is
used for status data files, must be unique for each package. For
example, set PKGDIR to /etc/cmcluster/package_name,
removing any quotes around the file names. The operator may
create the FORCEFLAG file in this directory. See Appendix B for a
description of these variables.
c. Set the DT_APPLICATION_STARTUP_POLICY variable to one of two
policies: Availability_Preferred, or
Data_Currency_Preferred.
d. Set the WAIT_TIME variable to the timeout, in minutes, to wait
for completion of the data merge from source to destination
volume before starting up the package on the destination
volume. If the wait time expires and merging is still in progress,
the package will fail to start with an error that prevents
restarting on any node in the cluster.
e. Set the DR_GROUP_NAME variable to the name of DR Group used
by this package. This DR Group name is defined when the DR
Group is created.
f. Set the DC1_STORAGE_WORLD_WIDE_NAME variable to the world
wide name of the EVA storage system which resides in Data
Center 1. This WWN can be found on the front panel of the EVA
controller, or from command view EVA UI.
g. Set the DC1_SMIS_LIST variable to the list of Management
Servers which resides in Data Center 1. Multiple names are
defined using a comma as a separator between the names.
h. Set the DC1_HOST_LIST variable to the list of clustered nodes
which resides in Data Center 1. Multiple names are defined
using a comma as a separator between the names.