Statistical-File-Scanner for Data Centers (SFS)
This tool allows to collect file statistics of data centers using methods from statistics. Therefore, by scanning only a fraction of data, it is possible to estimate the fraction/performance/compression ratio of tools.
HDTrace + PIOsimHD
This is a tracing library and simulator focused on HPC I/O but also covers MPI.
Is a flexible tracing/analysis library allowing to experiment and mutate I/O likewise.