Disk-tape joins: synchronizing disk and tape access
Proceedings of the 1995 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
Analytical Performance Modeling of Hierarchical Mass Storage Systems
IEEE Transactions on Computers
A brief survey of tertiary storage systems and research
SAC '97 Proceedings of the 1997 ACM symposium on Applied computing
Optimal Scheduling Algorithms for Tertiary Storage
Distributed and Parallel Databases
A generalized storage model for tertiary storage based systems
IDEAS'97 Proceedings of the 1997 international conference on International database engineering and applications symposium
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We present query execution strategies that are optimized for the characteristics of tertiary memory devices. Traditional query execution methods are oriented to magnetic disk or main memory and perform poorly on tertiary memory. Our methods use ordering and batching techniques on the I/O requests to reduce the media switch cost and seek cost on these devices. Some of our methods are provably optimal and others are shown to be superior by simulation and cost formula analysis.