Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

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.
If a connection to the first management server fails, attempts are made to connect to the
subsequent management servers in the order that they are specified.
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.
i. Set the DC2_STORAGE_WORLD_WIDE_NAME variable to the world wide name of the EVA
storage system which resides in Data Center 2. This WWN can be found on the front
panel of the EVA controller, or from command view EVA UI.
j. Set the DC2_SMIS_LIST variable to the list of Management Server, which resides in
Data Center 2. Multiple names are defined using a comma as a separator between the
names.
If a connection to the first management server fails, attempts are made to connect to the
subsequent management servers in the order that they are specified.
k. Set the DC2_HOST _LISTvariable to the list of clustered nodes which resides in Data
Center 2. Multiple names are defined using a comma as a separator between the names.
l. Set the QUERY_TIME_OUT variable to the number of seconds to wait for a response from
the SMI-S CIMOM in Management Server. The default timeout is 300 seconds. The
recommended minimum value is 20 seconds.
7. Distribute Metrocluster Continuous Access EVA configuration, environment and control script
files to other nodes in the cluster by using ftp, rcp or scp.
# rcp -p /etc/cmcluster/pkgname/* \ other_node:/etc/cmcluster/pkgname
8. Apply the Serviceguard configuration using the cmapplyconf command or SAM.
9. Verify that each node in the Serviceguard cluster has the following files in the directory /etc/
cmcluster/pkgname
pkgname.cntl Serviceguard package control script
pkgname_caeva.env Metrocluster Continuous Access EVA environment file
pkgname.ascii Serviceguard package ASCII configuration file
pkgname.sh Package monitor shell script, if applicable
other files Any other scripts used to manage Serviceguard packages
The Serviceguard cluster is ready to automatically switch packages to nodes in remote data
centers using Metrocluster Continuous Access EVA.
10. Using standard Serviceguard commands (cmruncl, cmhaltcl, cmrunpkg, cmhaltpkg),
test the source disk site for cluster and package startup and package failover.
11. Any running package on the source disk site that will have a counterpart on the target disk
site must be halted at this time.
Setting up a Recovery Package on the Recovery Cluster
Use the procedures in this section to configure a recovery package on the target disk site. Consult
the Serviceguard documentation for more detailed instructions on setting up Serviceguard with
packages, and for instructions on how to start, halt, and move packages and their services between
nodes in a cluster. Use the following steps for the recovery package set up:
1. Install Continentalclusters on all the cluster nodes in the target disk site (skip this step if the
software has been pre installed).
248 Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access EVA