Maintenance And Testing; Event Data Retention And Storage Limits; Test Events And Alerts - Dell PowerScale OneFS Reference Manual

Maintenance and testing

You can modify event settings to specify retention and storage limits for event data, schedule maintenance history windows,
and send test events.

Event data retention and storage limits

You can modify settings to determine how event data is handled on your cluster.
By default, data related to resolved event groups is retained indefinitely. You can set a retention limit to make the system
automatically delete resolved event group data after a certain number of days.
You can also limit the amount of memory that event data can occupy on your cluster. By default, the limit is 1 megabyte of
memory for every 1 terabyte of total memory on the cluster. You can adjust this limit to be between 1 and 100 megabytes of
memory. For smaller clusters, the minimum amount of memory that will be set aside is 1 gigabyte.
When your cluster reaches a storage limit, the system will begin deleting the oldest event group data to accommodate new data.
View event storage settings
You can view your storage and maintenance settings.
Click Cluster Management > Events and Alerts > Settings.
Modify event storage settings
You can modify your storage and maintenance settings.
1. Click Cluster Management > Events and Alerts > Settings.
2. In the Retain event group and maintenance window history field, enter the number of days you want resolved event
groups and maintenance window history to be stored before they are deleted.
3. In the Event log storage limit field, enter the limit for the amount of storage you want to set aside for event data.
The value in this field represents how many megabytes of data can be stored per terabyte of total cluster storage.
4. Click Submit.

Test events and alerts

Test events called heartbeat events are automatically generated. You can also manually generate test alerts.
In order to confirm that the system is operating correctly, test events are automatically sent every day, one event from each
node in your cluster. These are referred to as heartbeat events and are reported to an event group named Heartbeat Event.
To test the configuration of channels, you can manually send a test alert through the system.
Send a test alert
You can manually generate a test alert.
1. Click Cluster Management > Events and Alerts > Alert Management.
2. In the CELOG alerting area, click the Alert channel tab.
3. In the Alert Channel area, click Create channel.
4. Locate the Send test alert area.
5. In the Test message field, enter the message that you want to send.
6. Click Send.
24 Introduction to system events