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

— 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 se...

• Type: Conference
• Year: 2006
• Where: DSN
• Authors: Ludmila Cherkasova, Jerome A. Rolia
• Keywords: Application Qos Requirements, Computer Networks, DSN 2006, Resource Access Qos, Resource Pool