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Use /bin/true and /bin/false for policy debugging

If you have troubles executing action scripts, especially with return codes you can debug you policy using /bin/true and /bin/false to provide success and failure, correspondingly.

Buffering Messages

Messages received during the defined service hours are passed to the Java GUI Message Browser in the normal way. All messages that are received outside of the defined service hours are buffered. The buffered messages can be viewed in the Java GUI Pending Messages browser. Unbuffering Messages Automatically

Buffered messages are automatically unbuffered (that is, moved to the Java GUI Message Browser) At the start of the next period of defined service hours. After the buffered messages are moved to the Java GUI Message Browser, they may be worked on in the usual way.

Unbuffering Messages Manually

Buffered messages can be unbuffered manually, either from the Message Properties window or from the Java GUI Pending Messages Browser itself. Messages that are unbuffered manually are owned or marked by the user who carried out the unbuffer operation.

The following restrictions apply to the manual unbuffer operation:

NOTE Other managers may have their own configuration for outages and service hours.

Defining Service Hours

To find out how to set up service hours and for more information about the policies and syntax rules used to define service hours, see the HPOM

Scheduled Outages

In the context of HPOM, a scheduled outage allows you to log or suppress (delete) incoming messages during a defined period of time if the messages relate to a service or system that is known or planned to be unavailable. For example, you can use a scheduled outage to suppress all messages from a component that is temporarily unavailable for maintenance reasons.

A scheduled outage defines a planned and potentially recurring period of time in which one or more components or services in a distributed working environment are not available, and in which messages relating to these components or services need to be logged or perhaps even deleted. An outage may be set dynamically if a major problem occurs, and if further messages from a particular component need to be suppressed. For example, if an Oracle Database goes down, you could suppress, for a defined period of time, all messages that are related to Oracle. The status of an outage can also be set by an external application.

Defining a Scheduled Outage

To find out how to set up a scheduled outage and for more information about the policies and syntax rules used to define a scheduled outage, see the HPOM Administrator’s Reference.

Implementing Message Policies

You can configure service hours and scheduled outages on the management server with a policy similar to the one used to configure flexible management. The same syntax is used and, as a consequence, may be checked with the opcmomchk tool. This policy is located in /etc/opt/OV/share/conf/OpC/mgmt_sv/respmgrs. For more information on the policy and the syntax used, see the HPOM Administrator’s Reference.

NOTE Scheduled outages and service hours may be configured by an external application. However, the designated external application must create the policy for outages and service hours and use the opccfgout(1M) command to control outages.

This chapter describes how to configure and manage HPOM in widely distributed environments. It also discusses the underlying concepts of flexible management and manager-of-manager (MoM) communications. NOTE In this chapter, the term “manager” refers to the management server, and the term “agents” refers to managed nodes.



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