The HP AutoRAID hierarchical storage system
ACM Transactions on Computer Systems (TOCS) - Special issue on operating system principles
Hot mirroring: a method of hiding parity update penalty and degradation during rebuilds for RAID5
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Strategic directions in storage I/O issues in large-scale computing
ACM Computing Surveys (CSUR) - Special ACM 50th-anniversary issue: strategic directions in computing research
Hot Block Clustering for Disk Arrays with Dynamic Striping
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
Data partitioning and load balancing in parallel disk systems
The VLDB Journal — The International Journal on Very Large Data Bases
Online reorganization of databases
ACM Computing Surveys (CSUR)
Proceedings of the 1st Workshop on Interactions of NVM/FLASH with Operating Systems and Workloads
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RAID5 disk arrays provide high performance and high reliability for reasonable cost. However RAID5 suffers a performance penalty during block updates. In this paper, we examine the feasibility of using “dynamic parity striping” to improve the performance of block updates. Instead of updating each block independently, this method buffers a number of updates, generates a new stripe composed of the newly updated blocks, then writes the full stripe back to disk. Two implementations are considered in this paper. One is a log-structured file system(LFS)[8, 9] based method and the other is Virtual Striping[4]. Both methods achieve much higher performance than conventional approaches. The performance characteristics of the LFS based method and the Virtual Striping method are clarified.