Abstract
SCSI RDMA Protocol (SRP) is used to build high performance Storage Area Networks (SANs) over InfiniBand, or SRP-based IB-SANs for short. The I/O read performance is critical for many read dominant applications, such as multimedia, remote sensing, data backup, etc. However, if I/O accesses focus on a specific storage device of an IB-SAN, the local I/O performance of single device could become the bottleneck, leaving the network performance under utilized. In this paper, we propose an SRP target mode called Target Disk Cache Assisted (tDCA) mode, which explores the file read-ahead feature and page cache of Linux to tackle the performance gap between storage devices and network. Experimental results show that this strategy improves the read performance in terms of throughput which is increased significantly for both random read with good locality and sequential read.
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Jiang, Z., He, J., Han, J., Wang, X., Zhou, Y., He, X. (2007). An SRP Target Mode to Improve Read Performance of SRP-Based IB-SANs. In: Stojmenovic, I., Thulasiram, R.K., Yang, L.T., Jia, W., Guo, M., de Mello, R.F. (eds) Parallel and Distributed Processing and Applications. ISPA 2007. Lecture Notes in Computer Science, vol 4742. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74742-0_24
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DOI: https://doi.org/10.1007/978-3-540-74742-0_24
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