Managing Databases › Time Series Facility Heap Memory Recommendations

Time Series Facility Heap Memory Recommendations

We recommend that you allocate 250-300 MB of heap memory for the Time Series Facility (TSF) Server with the following additional TSF heap recommendations for each discipline:

• 250 MB for CA Chorus for Security and Compliance Management.
• 450-800 MB for CA Chorus for Storage Management based on an average entity instance count of 5,000-17,500.

  entity instance

  Unique name of a dfSMS and non-dfSMS storage volume name, DASD volume name, catalog name, or data set group name that is registered in CA Vantage.

• 360-600 MB for CA Chorus Infrastructure Management for Networks and Systems based on an average of 12-36 LPARs.

Note: The recommended values are based on average usage. You can calculate the amount of TSF heap memory that is required based on your system load. For the equations to calculate your TSF heap memory, see the Troubleshooting Guide. 

To modify the TSF heap memory size, see the Java heap size (Java SDK Option) setting in the ENVNTSF member of chorus_runtime_hlq.CETJOPTN. For the heap range, -Xms is the starting value (lower end of the range), and -Xmx is the ending value (higher end of the range).

Example: Minimum Recommendations

• TSF Server with all disciplines: 250 MB + 250 MB + 450 MB + 360 MB = 1,310 MB
• TSF Server with the Security and Storage disciplines: 250 MB + 250 MB + 450 MB = 950 MB

Example: Optimum Recommendations

• TSF Server with all disciplines: 300 MB + 250 MB + 800 MB + 600 MB = 1,950 MB
• TSF Server with the Security and Storage disciplines: 300 MB + 250 MB + 800 MB = 1,350 MB