Tuning your Ceph cluster will enable you to get the best performance and the most benefits from your hardware. In this section, we will look at recommended Ceph tuning options.
It's important to understand that by tuning, all you are doing is reducing bottlenecks. If you manage to reduce enough bottlenecks in one area, the bottleneck will simply shift to another area. You will always have a bottleneck somewhere, and eventually, you will reach a point where you are simply over the limit of what a particular hardware can provide. Therefore, the goal should be to reduce bottlenecks in the software and operating system to unlock the entire potential of your hardware.