Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux B.01.00.10, December 2013

NOTE: The RESYNC_WAIT_TIMEOUT value must not be greater than the value of
run_script_timeout parameter specified in the package configuration. Adjust the
run_script_timeout value as necessary to consider the RESYNC_WAIT_TIMEOUT
value in addition to the time taken for the full execution of each function in the package
startup.
m. To allow package to start up with non-current data, set AUTO_NONCURDATA to 1.
dts/3parrc/AUTO_NONCURDATA 1
The legal values for this parameter are “0” (default value) or “1”.
If AUTO_NONCURDATA is set to 1, Metrocluster software will allow the application to start
as long as the data is consistent; even though, it may not be current.
If AUTO_NONCURDATA is set to 0 (default value), Metrocluster software will not allow the
application to start if the data is not current. You are require to interfere to bring the data
to current or to force the package to start on a node by creating FORCEFLAG in the
package directory (dts_pkg_dir).
n. Specify the time in seconds for Metrocluster to wait to determine that the Remote Copy
links are down. The default time in seconds to wait is 250.
dts/3parrc/PERIODIC_ASYNC_LINK_DOWN_TIMEOUT 250
o. By default, a monitoring service is mentioned in the package configuration file to monitor
the health of the Remote Copy volume group added to the package.
• Specify the name of the service, which is unique in the cluster.
For example:
service_name 3par_rcvg_monitor
service_cmd "$SGSBIN/DR3PARRCMon $SG_PACKAGE_NAME"
service_restart unlimited
• To receive notifications about the status change of the Remote Copy volume groups,
specify an appropriate value for the DR_NOTIFICATION_CHOICES attribute by
specifying one or more notification types.
The DR_NOTIFICATION_CHOICES attribute supports the following types of
notifications:
◦ EMAIL
NOTE: For email notifications, you must include sg/email module as part of
the package.
◦ SYSLOG
◦ OPC
◦ CONSOLE
You can configure one or any combination of the notification types for the Remote Copy
volume group monitor in the DR_NOTIFICATION_CHOICES attribute. For example, to
configure all the types of notifications:
DR_NOTIFICATION_CHOICES EMAIL OPC SYSLOG CONSOLE
If you do not want to use the Remote Copy volume group monitor, comment the
DR_NOTIFICATION_CHOICES attribute and the monitoring service in the package
configuration file.
Configuring Metrocluster Packages 19