R-Opus: A Composite Framework for Application Performability and QoS in

Cherkasova, Ludmila ; Rolia, Jerome

HP Development Company

关键词: automation;    enterprise applications;    shared resource pools;    QoS;    measurements;    capacity management;    performance models;   

RP-ID  :  HPL-2006-58

学科分类：计算机科学（综合）

美国|英语

来源: HP Labs

【 摘 要 】

We consider shared resource pool management taking into account per-application quality of service (QoS) requirements and server failures. Application QoS requirements are defined by complementary specifications for acceptable and time-limited degraded performance. Furthermore, a requirement specification is provided for both the normal case and for the case where an application server fails in the pool. Independently, the resource pool operator provides a resource access QoS commitment for two classes of service (CoS). These govern statistical multiplexing within the pool. A QoS translation automatically maps application demands onto the resource pool's CoS to best enable sharing. A workload placement service consolidates applications to a small number of servers while satisfying application QoS requirements. The service reports whether a spare server is needed or how applications affected by a single failure can operate according to failure QoS constraints using remaining servers until the failure can be repaired. A case study demonstrates the approach. Notes: Published in Proceedings of the International Conference on Dependable Systems and Networks (DSN 2006), 25-28 June 2006, Philadelphia, PA, USA 10 Pages