Accession Number:

ADA512642

Title:

Co-Scheduling of Disk Head Time in Cluster-Based Storage

Descriptive Note:

Journal article

Corporate Author:

CARNEGIE-MELLON UNIV PITTSBURGH PA PARALLEL DATA LABORATORY

Personal Author(s):

Report Date:

2009-01-01

Pagination or Media Count:

11.0

Abstract:

Disk timeslicing is a promising technique for storage performance insulation. To work with cluster-based storage, however, timeslices associated with striped data must be co-scheduled on the corresponding servers. This paper describes algorithms for determining global timeslice schedules and mechanisms for coordinating the independent server activities. Experiments with a prototype show that, combined, they can provide performance insulation for workloads sharing a storage cluster-- each workload realizes a configured minimum efficiency within its timeslices regardless of the activities of the other workloads.

Subject Categories:

  • Computer Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE