Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access XP P9000 for Linux B.01.00.00

3. If you want to monitor the status of the device group pairs, configure Device Group Monitor
(DGM). Otherwise, skip this step.
a. Configure the parameters for the Device Group Monitor in the package configuration
file.
Specify the polling interval for the DGM. If the parameter is not defined (commented out),
the default value is 10 minutes. Otherwise, the value is set to the desired polling interval
in minutes.
MON_POLL_INTERVAL <polling interval in minutes>
Specify the value for MON_NOTIFICATION_FREQUENCY . This value is used to control
the frequency of notification message when the state of the device group remains the
same. If the value is zero, the monitor sends notification when the state of the device
group has changed. If the value is set to n where n is greater than 0, the monitor sends
a notification every nth polling interval or when the device group state has changed. If
the variable is not set, the default value is 0.
MON_NOTIFICATION_FREQUENCY <frequency of notification message>
If you want to receive notification messages over e-mail, specify the fully qualified e-mail
address. You can specify multiple e-mail address separated by a comma.
MON_NOTIFICATION_EMAIL <e-mail id>
If you want notification messages to be logged in the syslog file, uncomment the
MON_NOTIFICATION_SYSLOG variable and set it to 1. If the variable is not set, the
default value is 0.
MON_NOTIFICATION_SYSLOG <0 or 1>
If you want notification messages to be logged on the system's console, uncomment the
MON_NOTIFICATION_CONSOLE variable and set it to 1. If the variable is not set, the
default value is 0.
MON_NOTIFICATION_CONSOLE <0 or 1>
If you want an automatic resynchronization upon link recovery, uncomment the
AUTO_RESYNC variable and set it to either 1 or 2. If the variable is not defined or
commented, the default value of 0 is used.
If AUTO_RESYNC is set to 0 (DEFAULT), the monitor will not try to do the resynchronization
from PVOL to SVOL. This setting will only send notifications.
If AUTO_RESYNC is set to 1, the monitor will split the remote BC if one is configured
from the mirror group before trying to do the resynchronization from PVOL to SVOL.
If AUTO_RESYNC is set to 2, the monitor will only do the resynchronization from PVOL
to SVOL when it finds the MON_RESYNC file in the package directory on the node that
the package is running. The monitor will not manage the remote BC prior to and after
the resynchronization. Use this setting if you want to manage the BC. To enable the
Continuous Access resynchronization for AUTO_RESYNC=2, it is necessary to create a
file using the Linux command touch. For Example,
22 Configuring an application in a Metrocluster environment