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

NOTE: Metrocluster is usually used with applications such as Oracle. So, the application
toolkit module must also be included when Metrocluster is used in conjunction with an
application.
For example, when Metrocluster is used in conjunction with the Oracle toolkit, the Oracle
toolkit module and other required modules must also be included with the Metrocluster with
3PAR Remote Copy module.
Use the following command:
# cmmakepkg –m dts/mc3parrc –m sg/filesystem -m sg/package_ip -m\
ecmt/oracle/oracle temp.config
2. Edit the following attributes in the pkgName.config file.
a. Specify the package directory for the dts/dts/dts_pkg_dir attribute.
dts/dts/dts_pkg_dir /etc/cmcluster/pkg
b. Specify the DC1 nodes for the DC1_NODE_LIST parameter. Multiple names are defined
using a space as a separator between the names.
dts/3parrc/DC1_NODE_LIST “dc1_node1 dc1_node2”
c. Specify the DC2 nodes for the DC2_NODE_LIST parameter. Multiple names are defined
using a space as a separator between the names.
dts/3parrc/DC2_NODE_LIST “dc2_node1 dc2_node2”
d. Specify the DNS resolvable name or IP address of the HP 3PAR storage system that resides
in DC1.
dts/3parrc/DC1_STORAGE_SYSTEM_NAME "3PAR001"
e. Specify the DNS resolvable name or IP address of the HP 3PAR storage system that resides
in DC2.
dts/3parrc/DC2_STORAGE_SYSTEM_NAME “3PAR002”
f. Specify the Remote Copy volume group name configured on the HP 3PAR storage system
that resides in DC1, containing the disks used by the application.
dts/3parrc/DC1_RC_VOLUME_GROUP “mcrcgroup”
g. Specify the Remote Copy volume group name configured on the HP 3PAR storage system
that resides in DC2, containing the disks used by the application.
dts/3parrc/DC2_RC_VOLUME_GROUP “mcrcgroup.r2835”
h. Specify the user on the HP 3PAR storage system that resides in DC1.
dts/3parrc/DC1_STORAGE_SYSTEM_USER “mc3parusr”
Metrocluster executes the Remote Copy commands on DC1 storage system through ssh
using this user. This user must have access to perform the Remote Copy operations on
the DC1_RC_VOLUME_GROUP.
i. Specify the user on the HP 3PAR storage system that resides in DC2.
dts/3parrc/DC2_STORAGE_SYSTEM_USER “mc3parusr”
Metrocluster executes the Remote Copy commands on DC2 storage system through ssh
using this user. This user must have access to perform the Remote Copy operations on
the DC2_RC_VOLUME_GROUP.
NOTE: The name of the storage system user can be same or different on DC1 and DC2
arrays.
Configuring an application in a Metrocluster with 3PAR Remote Copy environment 323