Poster: rethinking raid for SSD based HPC systems
Proceedings of the 2011 companion on High Performance Computing Networking, Storage and Analysis Companion
Shredder: GPU-accelerated incremental storage and computation
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
Concurrency and Computation: Practice & Experience
GPUstore: harnessing GPU computing for storage systems in the OS kernel
Proceedings of the 5th Annual International Systems and Storage Conference
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While RAID is the prevailing method of creating reliable secondary storage infrastructure, many users desire more flexibility than offered by current implementations. Traditionally, RAID capabilities have been implemented largely in hardware in order to achieve the best performance possible, but hardware RAID has rigid designs that are costly to change. Software implementations are much more flexible, but software RAID has historically been viewed as much less capable of high throughput than hardware RAID controllers. This work presents a system, Gibraltar RAID, that attains high RAID performance by offloading the calculations related to error correcting codes to GPUs. This paper describes the architecture, performance, and qualities of the system. A comparison to a well-known software RAID implementation, the md driver included with the Linux operating system, is presented. While this work is presented in the context of high performance computing, these findings also apply to a general RAID market.