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JAS : JVM-Based Active Storage Framework for Object-based Storage Systems
Xiangyu Li,Shuibing He,Xianbin Xu,Yang Wang 보안공학연구지원센터 2016 International Journal of Database Theory and Appli Vol.9 No.7
We propose JAS, a JVM-based active storage framework for object-based storage systems. JAS programs the active storage functions of users as Java codes, and allows them to be executed on different OSD platforms (Operating systems and hardware) without recompiling. JAS offloads the active storage code from a client to the OSD by extending the standard OSD command set, and execute the Java code on the OSD on-demand by triggering them through extended client interfaces. We have implemented JAS under an object-based storage system. Experimental results show that the JVM-based active storage framework has been successfully set up, and this cross-platform design can largely improve system performance.
Skewed Data Distribution for Active Storage Systems on Hybrid Servers
Xiangyu Li,Shuibing He,Xianbin Xu 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.5
With the popularity of new storage technologies, hybrid active storage system provides an efficient way to improve the performance of high-performance computing applications. However, current active storage efforts have neglected the storage performance gap between heterogeneous servers, largely affecting the overall system performance. In this paper, we propose SDD, a Skewed Data Distribution scheme for hybrid active storage systems. In contrast to traditional even data distribution schemes, SDD distribute data on servers with skewed amount of data based on their performance. We have implemented a prototype of our proposed data layout scheme in a parallel I/O system, and demonstrated its benefits with a typical data processing application. Experimental results show our proposed data placement scheme can significantly improve the overall active storage system performance.