Managing memory and processor usage

Ensure that you manage memory requirements and processor usage to ensure that the server can complete data processes such as backup and data deduplication. Consider the impact on performance when you complete certain processes.

Before you begin

  • Ensure that your configuration uses the required hardware and software. For more information, see Tivoli® Storage Manager Supported Operating Systems.
  • For more information about managing resources such as the database and recovery log, see Planning the storage arrays.
  • Add more system memory to determine whether there is a performance improvement. Monitor memory usage regularly to determine whether more memory is required.

Procedure

  1. Release memory from the file system cache where possible.
  2. To manage the system memory that is used by each server on a system, use the DBMEMPERCENT server option. Limit the percentage of system memory that can be used by the database manager of each server. If all servers are equally important, use the same value for each server. If one server is a production server and other servers are test servers, set the value for the production server to a higher value than the test servers.
  3. Set the user data limit and private memory for the database to ensure that private memory is not exhausted. Exhausting private memory can result in errors, less than optimal performance, and instability.