Tuning performance
Information needed to tune Data Protection for SAP performance is provided. A system is considered balanced when the threads on the disk and the network sides are similarly busy throughout the backup, and when resource usage is good. To improve overall throughput, consider adding more resources to create a balanced system.
About this task
In an optimum setup, a slight network bottleneck is preferred. Under certain conditions, the degree of imbalance cannot be determined from the graphical presentation. Depending on your system characteristics that include system buffering and buffer sizes, usage might reduce to almost zero in the graphical presentation although the system is balanced. In this case, slight modifications can yield a change of bottleneck without significant throughput changes. However, whether the system is disk or network, tape constraints are always shown correctly. A balanced system, however, does not necessarily mean that the data throughput cannot be improved further. Adding new resources can improve the throughput rate.
Procedure
- Maintain an optimum setup by ensuring tapes are maintained in streaming mode.
- Ensure that there is no network idle time, and that the network is at least as fast as the tape.
- Consider adding new resources to improve the throughput rate.