TrueSight Capacity Optimization leverages Oracle Real Application Cluster (RAC) architecture to scale out.
This topic provides general sizing and scalability guidelines. Contact the BMC Customer Support for your sizing requirements.
Follow these guidelines when sizing TrueSight Capacity Optimization database servers:
The major drivers for sizing storage are:
Follow these guidelines when sizing storage:
Using the default aging policies, approximately 50 GB of storage are required for every one million samples per day, and the required storage increases linearly as the number of samples increases. For example, 500 GB are required for 10 million samples per day.
These estimates are based on standard BMC TrueSight Capacity Optimization summarization policies.
The preceding sizing values, specifically the amount of required storage, are only rough estimates. For more accurate values, also consider the following information:
Aging policies: They determine how long data is stored in the data warehouse and the amount of data that is processed when data is loaded into BMC TrueSight Capacity Optimization (for example, when importing historical data).
To show how these factors can affect the amount of storage required, consider an example of 5,000 managed entities with hourly samples for an average of 100 metrics per system, which generates 12 million daily samples. Based on preceding guidelines, 12 million daily samples requires 600 GB of storage. With a conservative out-of-sync sample rate of 10 percent, the estimate reaches 13.2 million daily samples, which requires 660 GB of storage. Plus, if the aging policy at the detail level is set at 95 months, the estimated storage required becomes 720 GB.
You can safely ignore the effect that business driver KPIs have on storage requirements. Even as many as 500 business driver KPIs collected at hourly intervals does not change significantly the overall number of daily samples.
The estimation here considers 5,000 generic servers with 40 metrics at hour resolution, and that resolves to 280 GB with default aging (about 5 million records/day, also considering business driver KPIs).