I/O subsystem performance is becoming increasingly important for a wide range of applications. The demand can be met with a large memory capacity or fast local SSDs, but such solutions cause very high investment costs and are rather inflexible. Here, we investigate a multitiered approach, combining memory, local SSDs and InfiniBand-attached block storage connected via SRP (SCSI RDMA protocol). Different variants of this hybrid storage system are evaluated, and we present a method to analyze the I/O patterns of applications for choosing the best approach. We also demonstrate the integration of the dynamic remote storage facility into the scheduling system Moab. Our method allows for an on-demand provisioning of multi-tiered file systems of varying sizes, managing storage resources automatically with a broker software.
CITATION STYLE
Neuer, M., Salk, J., Berger, H., Focht, E., Mosch, C., Siegmund, K., … Wesner, S. (2016). Motivation and implementation of a dynamic remote storage system for I/O demanding HPC applications. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9945 LNCS, pp. 616–626). Springer Verlag. https://doi.org/10.1007/978-3-319-46079-6_42
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