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:
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.