International Business Machines Corporation
Database capacity estimation for database sizing

Abstract:

A method and system for sizing databases. Multiple patterns of historical capacity usage by multiple databases in a computer system are identified. The multiple patterns are statistically significant for multiple characteristics due to the multiple databases including an input value of each characteristic of multiple characteristics pertaining to utilization of the multiple databases. A weighted value of capacity usage is computed as ACP*FC*PC, wherein ACP=an average value of historical capacity points for each pattern, FC=fraction of the characteristics associated with each pattern, and PC=a fraction of the multiple databases used for each pattern. One or more current databases are sized via utilization of the computed total value of capacity usage. A virtual machine or a new server of the computer system is created. The virtual machine or new server includes the sized one or more current databases.