IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Installation Guides > High Availability Guide for Distributed Systems > The clustering of IBM Tivoli Monitoring components > What to expect from the IBM Tivoli Monitoring infrastructure in a clustered environment
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Clustered data warehouse
When the data warehouse is set up as a cluster, the Tivoli Monitoring components connected to the data warehouse respond to the data warehouse failover or failback as a database restart. The components that connect to the data warehouse database include the summarization and pruning agent, Warehouse Proxy Agent, and portal server (when retrieving long term data collection for the portal workspace views).
When the Summarization and Pruning Agent loses contact with the data warehouse database, it attempts to reestablish contact on the next summarization and pruning agent interval and then restart its work.
When the Warehouse Proxy Agent loses contact with the data warehouse database, it attempts to reestablish the connection and restart its work.
When the portal server loses contact with the data warehouse, it reconnects on the next query request from a portal client.
Parent topic:
What to expect from the IBM Tivoli Monitoring infrastructure in a clustered environment