Dynamic data reallocation in disk arrays

Authors:
Ron Arnan;Eitan Bachmat;Tao Kai Lam;Ruben Michel
Affiliations:
EMC Corporation;Ben Gurion University, Beer-Sheva, Israel;EMC Corporation;EMC Corporation
Venue:
ACM Transactions on Storage (TOS)
Year:
2007

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Abstract

We present an application which optimizes the configuration of data in a disk array. The application relies on very little input data which is readily available from many storage devices. We validate the application in a controlled experiment and in a production environment. In both cases, the reconfiguration process led to a 20--30% improvement in response time.