Using High Availability Monitors (June 2003)

Monitoring Database Resources
Rules for Using the HA Database Monitor with ServiceGuard
Chapter 368
Setting Failover Parameters
When using the HA Database Monitor with ServiceGuard, the
ServiceGuard parameters listed in Table 3-3 should be set so that a
package failover will occur when access to the database resource fails.
Table 3-3 Setting Failover Parameters
Parameter
Recommen
ded Setting
File Location Notes
RUN_
SCRIPT_
TIMEOUT
non-zero
timeout
value
ServiceGuard
package
configuration
file
Do not leave these
parameters set to the default,
NO_TIMEOUT. If you do and if
the run or halt script hangs
for some reason, the package
will not fail over successfully
to another node.
HALT_
SCRIPT_
TIMEOUT
non-zero
timeout
value
RESOURCE_
START
DEFERRED ServiceGuard
package
configuration
file
This means that the resource
will not be checked for
accessibility by the
ServiceGuard daemon until
after the cmstartres
command is issued by the
control script. cmstartres
verifies that ServiceGuard
willinitializesuccessfullyand
the database resources are
ready to be monitored before
any dependency checking
begins.
RESOURCE_
NAME
database
resource
ServiceGuard
package
configuration
file
The name of the database or
database resource to be
monitored, for example,
/rdbms/server/
status/ database_server_n
ame
RESOURCE_UP_
VALUE
UP value ServiceGuard
package
configuration
file
The condition that defines the
UP state, for example,
RESOURCE_UP_VALUE=UP