Database Reference
In-Depth Information
You can also specify different actions to take depending on the severity of the event. For example, if a Filesystem
Space Used (%) rule generates a
warning
event, you may wish to send an e-mail notification. Then, if the same rule
generates a
critical
event, you may send a page notification, to wake up the on-call DBA.
Many other actions can be performed for each type of rule. Table
7-2
summarizes each type of rule, and their
usages for different scenarios.
Table 7-2.
Rule Types and Their Best Uses
Type of Rules
Best Used to . . .
Event rule
• Createincidentsbasedonevents
• Createhelp-deskticketsforincidents
• Sendeventstothird-partymanagementsystems
• Sende-mailforspecificeventsofinterest(forexample,sende-mailtobusinessusersif
target is down)
Incident rule
• Automateincidentworkflowoperations(forexample,assignincident)
• Sendnotificationsonincidents
• Createhelp-deskticketsforincidents(forexample,createticketifincidentisescalated
to level 2)
Problem rule
• Automateproblemworkflowoperations(forexample,assignment,prioritization,
and so forth)
• Sendnotificationsonproblems
Individual rules can be combined into sets for easier management. Rule sets possess the following attributes:
Name
: An identifier for the rule set
Description
: A brief statement of the rule set's purpose
Applies To
: A list of objects to which the rules in the set apply
Owner
: The administrator in Enterprise Manager who created the rule set
Enabled
: An indicator of whether the rule set has been applied
Type
: Denotes an Enterprise or Private rule set
Think about the order of rules within a rule set, and group similar rules together. Consider rules to create
incidents, perhaps by sending an e-mail or creating a trouble ticket. Also consider rules to manage incidents, perhaps
by escalating them. Duration-based rules should be put last.
Groups and systems should be used as targets for rule sets. It is recommended to use administration groups if
they have been defined. Your defining an administration group hierarchy will enable rules to be applied automatically
to new targets as they are added to administration groups by specifying their target properties.
Rules for the same group should be combined into one rule set. For example, in Figure
7-24
, the PROD-GROUP
rule set is applied to all targets whose
LifeCycle Status = 'Production'
.
