Monitoring and Controlling SNA Groups › Monitor SNA Groups

Monitor SNA Groups

From the SNA network summary display, you can manage the individual SNA resources. By creating the SNA group and service definitions, you put your network operations in a service-driven operations perspective. From this perspective, the amount of information you need to monitor is reduced. To manage these groups and services, you use the status and the graphical monitors.

You can monitor the services and SNA groups from any of the connected regions. Logs can be used to display the messages associated with a service or group and therefore with system activity, and authorized users can define filters and profiles that enable the viewing of information about specific services and groups. From an SNA group, you can display the status of the resources it contains.

The product provides the following monitors:

• Service Monitor
• Resource Monitor
• Graphical Monitor

More information:

Graphical Monitor

Use the Status Monitor

Access Monitors

You use monitors to keep track of the environment monitored by the region.

To access a monitor from the main primary menu

1. Enter M at the prompt.

   The Monitors : Primary Menu appears.

2. Enter an option to access the required monitor.

   The Monitor panel appears. This panel lets you access the entities monitored in the currently active system images.

   The format of the displayed information is determined by the type of monitor.

You can select a predefined filter to display specific services and resources. You can specify your default filter in your monitor profile.

More information:

Graphical Monitor

Use the Status Monitor

Manage SNA Resources in SNA Groups

To list the SNA resources belonging to an SNA group

1. Enter Z beside the group from the resource monitor.

   The details are listed.

From this list you can issue commands specific to SNA resources.

Example: Monitor Network Operations from the Service Monitor

This example shows how you can respond to a service problem.

Assume that you have created a number of service definitions, which your region now manages. You want to ensure that the managed services are operating normally. You access the service monitor to view their status.

The services have been behaving normally for some time. Suddenly, you notice that one of them turns yellow, indicating that it has degraded. One of its resources might have failed.

To investigate the problem

1. Enter Z beside the service to list its members.

   One of the SNA groups is displayed in yellow, indicating that it has degraded.

2. Enter Z beside the group to list its resources.

   An SNA line is displayed in red, indicating that it has failed.

3. Enter B (or S) beside the line to find out what caused it to acquire the FAILED state.

   The message is displayed in the Reason field on the SNA Resource panel.

   If you require more information, use commands to isolate the problem further.

   You can also enter L beside the degraded SNA group to view its transient log for further hints about the cause of the problem. Find the message that indicates the failure of the SNA line. You can jump from the transient log to the activity log to find out what was happening when the line failed. Enter L beside the message.

4. Review all the information available to you, and correct the problem. If everything is correct, the SNA line, SNA group, and service turn green, indicating normal operation.

Remove Members from SNA Groups

Sometimes, you may want to remove an SNA resource member from the SNA groups so that it does not affect the status of the groups. You can use the following commands to remove a member from all monitored SNA groups and then restore it to them later:

RMV

Removes an SNA resource from all SNA groups.

RST

Restores a previously removed SNA resource to all SNA groups.

Important! If a restored resource was included in a group as a result of a >> downstream indicator, the group will not rediscover it. To restore such a resource, you can use the BLD or BLDALL group command.