Using High Availability Monitors (June 2007)

Monitoring Database Resources
Rules for Using the HA Database Monitor with ServiceGuard
Chapter 3 71
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
Recomm
ended
Setting
File
Location
Notes
RUN_
SCRIPT_
TIMEOUT
non-zero
timeout
value
ServiceGua
rd package
configuratio
n 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 ServiceGua
rd package
configuratio
n 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
will initialize successfully
and the database resources
are ready to be monitored
before any dependency
checking begins.
RESOURCE_
NAME
database
resource
ServiceGua
rd package
configuratio
n file
The name of the database
or database resource to be
monitored, for example,
/rdbms/server/
status/database_server
_name