8.4.1 Scenario: Session Database Corruption

This section describes how to recover Policy when its session database corrupts.

When the session database corrupts, the database on all other sites can also corrupt due to data replication. It depends on the replication status after the corruption has occurred. If the data replication breaks due to database corruption, cnDBTier fails in either single or multiple sites (not all sites). And if the data replication is successful, database corruption replicates to all the cnDBTier sites and cnDBTier fails in all sites.

The fault recovery procedure covers following sub-scenarios:

• When DBTier Failed in All Sites