Trace Characteristics
Jun Long Xu · Apress eBooks · 2018
Trace is usually classified as three levels: block level, file level, and object level. They share many common metrics, although each has its own unique properties. In this chapter, I will discuss block-level trace metrics in detail since the block-level trace provides more fundamental information on storage systems than other two levels. For simplicity of representation, I divide the metrics into two categories: the basic ones and the advanced ones. The meanings and performance impacts of these metrics are explained in detail. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.