A Scalability Model for ECS's Data Server
Daniel A. Menascé, Mukesh Kumar Singhal · 1998
This paper presents a model for the scalability analysis of the Data Server sub-system of the EOSDIS Core System (ECS). The goal of the model is to analyze to determine if the planned architecture of the Data Server will support an increase in the workload with the possible components upgrade. We provide a summary of the ECS’s Data Server architecture and of a high level description of the Ingest and Retrieval operations in the ECS’s Data Server. This description forms the basis for the develop-ment of our scalability model. Then we present details of the scalability model and the methodology used to solve it. We describe the structure of the scalability model, input parameters, expressions for computing parameters of the scalability model solver, and algorithms for solving the scalability model. The scalability model is very general and allows the modeling of data servers with numerous configurations. 1