IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Installation Guides > Installation Guide > Performance tuning > Tivoli Data Warehouse > Warehouse Proxy Agent
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Use multiple Warehouse Proxy Agents
Tivoli Monitoring supports multiple warehouse proxies within a single hub monitoring server environment. The provision for multiple warehouse proxies provides for greater scalability and performance in historical data collection, and more importantly, improves reliability by providing a failover mechanism.
If a Warehouse Proxy is unavailable, data can be inserted into the warehouse by a different Warehouse Proxy Agent (if the agents are configured properly for failover). Install multiple Warehouse Proxy Agents contains detailed information about configuring multiple Warehouse Proxy Agents.
- If you are collecting and warehousing historical data in a monitoring environment with more than 1500 monitoring agents, consider using multiple Warehouse Proxy Agents to handle the volume of data that will be uploaded and inserted into the warehouse.
- To reduce the number of servers running Tivoli Monitoring components, you can install the Warehouse Proxy Agent on the same servers running the remote monitoring servers. Servers running both a monitoring server and a Warehouse Proxy Agent should have two processors.
- By default, each Warehouse Proxy Agent opens 10 exporter threads and 10 database connections for inserting data into the warehouse database (controlled by the KHD_EXPORT_THREADS and KHD_CNX_POOL_SIZE parameters, respectively). If you are using more than five Warehouse Proxy Agents, consider reducing the number of exporter threads and database connections for each Warehouse Proxy Agent, to limit the number of database connections inserting data into the warehouse database.
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Warehouse Proxy Agent