HRaid: A Flexible Storage-system Simulator.
Toni Cortés, Jesús Labarta · 1999
Clusters of workstations are becoming a quite popular platform to run high-performance applications. This fact has stressed the need of highperformance storage systems for this kind of environments. In order to design such systems, we need adequate tools, which should be flexible enough to model a cluster of workstations. Currently available simulators do not allow heterogeneity (several kind of disks), hierarchies or resource sharing (among others), which are quite common in clusters. To fill this gap, we have designed and implemented HRaid, which is a very flexible and easy to use storagesystem simulator. In this paper, we present this simulator, its main abstractions and some simple examples of how it can be used. Keywords: Storage-system modeling and simulation, Heterogeneous RAIDs, Cluster computing 1 Introduction One of the main characteristics of a cluster of workstations is its ability to grow whenever needed. If more storage space is required, a new disk can be easily attache...