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Oracle® ZFS Storage Appliance Administration Guide, Release OS8.7.x

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Updated: September 2017
 
 

Monitoring Replication Delays and RPO (BUI)

With asynchronous replication, a time delay occurs when writing data from the source to its replica on the target. A warning and error alert can be set to notify the administrator when a replication delay is approaching or exceeds the replication point objective (RPO). These alerts prompt the administrator to check for networking problems, application problems, and to examine the health of the storage appliance using analytics.

A replication delay alert can be set when creating or editing a replication action.

To set replication delay alerts:

  1. Go to Shares > Projects.
  2. Select a project or share, and click the Replication tab.
  3. Next to Actions, click the add icon image:image of add icon .
  4. Select the properties for this action. See Replication Action Properties.
  5. Select "Recovery point objective" and enter a value. Then specify days, hours, minutes, or seconds.
    image:Screenshot showing the BUI properties recovery point objective, replica 						lag warning alert, and replica lag error alert.
  6. Select "Replica lag warning alert" and "Replica lag error alert" and specify a percentage of the RPO for each property.

    Setting these properties will generate warnings at different times. For example, enter 50 to generate a minor alert when the replication delay exceeds 50% of the RPO. Enter 180 to generate a major alert when the replication delay exceeds 180% of the RPO.

    When the replica lag falls below the set values, a minor alert reports the replica lag is within the warning or error limit.

  7. Set an alert action as described in Setting Replication Alerts.

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