Request scheduling to mirrored heterogeneous storage arrays

Details Request scheduling to mirrored heterogeneous storage arrays Request scheduling to mirrored heterogeneous storage arrays

2006-04-25

2006-04-25

Vital, Pierre M. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S112000

Reexamination Certificate

active

07035971

ABSTRACT:
Method and apparatus for distributing storage requests referencing a replicated data set to heterogeneous storage arrays. A workload includes related storage requests that have a common quality-of-service requirement. The performance levels of the storage arrays are monitored in processing the storage requests. The performance levels and quality-of-service requirements are used for distributing the storage requests between the storage arrays.

REFERENCES:
patent: 6633955 (2003-10-01), Yin et al.
patent: 6754897 (2004-06-01), Ofer et al.
Benjamin Kao et al, “Scheduling Soft Real-Time Jobs Over Dual Non-Real-Time Servers”, IEEE Transactions on Parallel and Distributed Computing, vol. 7, No. 1, Jan. 1998, pp 56-68.
Jose Renato Santos et al, “Using Heterogeneous Disks on a Multimedia Storage System with Random Data Allocation”, UCLA Computer Science Department Techincal Report #980011, 1998, pp 1-23.
Guillermo A. Alvarez et al.; Declustering Disk Array Architectures with Optimal and Near-optimal Parallelism; Computer Architecture, 1998. Proceedings. The 25thAnnual International Symposium Jun. 27-Jul. 1, 1998, pp. 109-120.

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