Sciweavers

Share
ICDE
2005
IEEE

QoSMig: Adaptive Rate-Controlled Migration of Bulk Data in Storage Systems

8 years 11 months ago
QoSMig: Adaptive Rate-Controlled Migration of Bulk Data in Storage Systems
Abstract— Logical reorganization of data and requirements of differentiated QoS in information systems necessitate bulk data migration by the underlying storage layer. Such data migration needs to ensure that regular client I/Os are not impacted significantly while migration is in progress. We formalize the data migration problem in a unified admission control framework that captures both the performance requirements of client I/Os and the constraints associated with migration. We propose an adaptive rate-control based data migration methodology, QoSMig, that achieves the optimal client performance in a differentiated QoS setting, while ensuring that the specified migration constraints are met. QoSMig uses both long term averages and short term forecasts of client traffic to compute a migration schedule. We present an architecture based on Service Level Enforcement Discipline for Storage (SLEDS) that supports QoSMig. Our trace–driven experimental study demonstrates that QoSMig ...
Koustuv Dasgupta, Sugata Ghosal, Rohit Jain, Upend
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where ICDE
Authors Koustuv Dasgupta, Sugata Ghosal, Rohit Jain, Upendra Sharma, Akshat Verma
Comments (0)
books