7 research outputs found
PLAN: Joint policy- and network-aware VM management for cloud data centers
Policies play an important role in network configuration and therefore in offering secure and high performance services especially over multi-tenant Cloud Data Center (DC) environments. At the same time, elastic resource provisioning through virtualization often disregards policy requirements, assuming that the policy implementation is handled by the underlying network infrastructure. This can result in policy violations, performance degradation and security vulnerabilities. In this paper, we define PLAN, a PoLicy-Aware and Network-aware VM management scheme to jointly consider DC communication cost reduction through Virtual Machine (VM) migration while meeting network policy requirements. We show that the problem is NP-hard and derive an efficient approximate algorithm to reduce communication cost while adhering to policy constraints. Through extensive evaluation, we show that PLAN can reduce topology-wide communication cost by 38 percent over diverse aggregate traffic and configuration policies
Π‘ΠΈΡΡΠ΅ΠΌΡ ΡΠ»Π΅Π΄ΡΡΡΠ΅Π³ΠΎ ΠΏΠΎΠΊΠΎΠ»Π΅Π½ΠΈΡ Π΄Π»Ρ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΈΠ½ΡΠΎΠΊΠΎΠΌΠΌΡΠ½ΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ: ΡΡΠ΅Π±Π½ΠΎΠ΅ ΠΏΠΎΡΠΎΠ±ΠΈΠ΅
ΠΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠΈ Π±ΠΈΠ·Π½Π΅ΡΠ° ΠΈ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ ΡΠ²Π»ΡΡΡΡΡ Π² Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ ΠΈ Π²ΠΎΡΡΡΠ΅Π±ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΠ΅ΠΌΠΎΠΉ Π² ΡΠ°ΠΌΠΊΠ°Ρ
ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠ½ΡΠΎΠΊΠΎΠΌΠΌΡΠ½ΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΠΌΠΈ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΡΠΌΠΈ. Π ΠΏΠΎΡΠΎΠ±ΠΈΠΈ ΠΈΠ·Π»ΠΎΠΆΠ΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΈ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΠΎΠΊΠΎΠ»Π΅Π½ΠΈΡ (NGOSS), ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΠΏΡΠΈΠ½ΡΠΈΠΏΡ NGOSS, Π»Π΅ΠΆΠ°ΡΠΈΠ΅ Π² ΠΎΡΠ½ΠΎΠ²Π΅ ΠΊΠΎΠ½ΡΠ΅ΠΏΡΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΈ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΡ. Π£ΡΠ΅Π±Π½ΠΎΠ΅ ΠΏΠΎΡΠΎΠ±ΠΈΠ΅ ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΎ Π΄Π»Ρ ΡΡΡΠ΄Π΅Π½ΡΠΎΠ², ΠΎΠ±ΡΡΠ°ΡΡΠΈΡ
ΡΡ ΠΏΠΎ ΠΌΠ°Π³ΠΈΡΡΠ΅ΡΡΠΊΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ΅ Β«Π£ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ ΠΈΠ½ΡΠΎΠΊΠΎΠΌΠΌΡΠ½ΠΈΠΊΠ°ΡΠΈΡΠΌΠΈΒ» ΠΏΠΎ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌ 010300 Β«ΠΠ°ΡΠ΅ΠΌΠ°ΡΠΈΠΊΠ°. ΠΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΡΠ΅ Π½Π°ΡΠΊΠΈΒ», 010400 Β«ΠΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈΒ» ΠΈ 010500 Β«ΠΡΠΈΠΊΠ»Π°Π΄Π½Π°Ρ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΠΊΠ° ΠΈ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΊΠ°Β», Π° ΡΠ°ΠΊΠΆΠ΅ Π΄Π»Ρ ΡΡΡΠ΄Π΅Π½ΡΠΎΠ², Π°ΡΠΏΠΈΡΠ°Π½ΡΠΎΠ² ΠΈ ΡΠ°Π±ΠΎΡΠ½ΠΈΠΊΠΎΠ², ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·ΠΈΡΡΡΡΠΈΡ
ΡΡ Π² ΠΎΠ±Π»Π°ΡΡΠΈ ΠΈΠ½ΡΠΎΠΊΠΎΠΌΠΌΡΠ½ΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ. Π£ΡΠ΅Π±Π½ΠΎΠ΅ ΠΏΠΎΡΠΎΠ±ΠΈΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π² ΡΠ°ΠΌΠΊΠ°Ρ
ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΡ Π ΠΎΡΡΠΈΠΉΡΠΊΠΎΠ³ΠΎ ΡΠ½ΠΈΠ²Π΅ΡΡΠΈΡΠ΅ΡΠ° Π΄ΡΡΠΆΠ±Ρ Π½Π°ΡΠΎΠ΄ΠΎΠ², Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ Β«ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΡΠΊΡΠΏΠΎΡΡΠΎΠΎΡΠΈΠ΅Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΈΠ½Π½ΠΎΠ²Π°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌ ΠΏΠΎ ΠΏΡΠΈΠΎΡΠΈΡΠ΅ΡΠ½ΡΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌ Π½Π°ΡΠΊΠΈ ΠΈ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉΒ», ΠΈ Π²Ρ
ΠΎΠ΄ΠΈΡ Π² ΡΠΎΡΡΠ°Π² ΡΡΠ΅Π±Π½ΠΎ-ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ°, Π²ΠΊΠ»ΡΡΠ°ΡΡΠ΅Π³ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΠΊΡΡΡΠ°, ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΡ ΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΠΉ ΡΡΠ΅Π±Π½ΠΈΠΊ
Energieeffizienz in BΓΌroumgebungen
The increasing cost of energy and the worldwide desire to reduce CO2 emissions has raised concern about the energy efficiency of information and communication technology. Whilst research has focused on data centres recently, this thesis identifies office computing environments as significant consumers of energy. Office computing environments offer great potential for energy savings: On one hand, such environments consist of a large number of hosts. On the other hand, these hosts often remain turned on 24~hours per day while being underutilised or even idle. This thesis analyzes the energy consumption within office computing environments and suggests an energy-efficient virtualized office environment. The office environment is virtualized to achieve flexible virtualized office resources that enable an energy-based resource management. This resource management stops idle services and idle hosts from consuming resources within the office and consolidates utilised office services on office hosts. This increases the utilisation of some hosts while other hosts are turned off to save energy. The suggested architecture is based on a decentralized approach that can be applied to all kinds of office computing environments, even if no centralized data centre infrastructure is available. The thesis develops the architecture of the virtualized office environment together with an energy consumption model that is able to estimate the energy consumption of hosts and network within office environments. The model enables the energy-related comparison of ordinary and virtualized office environments, considering the energy-efficient management of services. Furthermore, this thesis evaluates energy efficiency and overhead of the suggested approach. First, it theoretically proves the energy efficiency of the virtualized office environment with respect to the energy consumption model. Second, it uses Markov processes to evaluate the impact of user behaviour on the suggested architecture. Finally, the thesis develops a discrete-event simulation that enables the simulation and evaluation of office computing environments with respect to varying virtualization approaches, resource management parameters, user behaviour, and office equipment. The evaluation shows that the virtualized office environment saves more than half of the energy consumption within office computing environments, depending on user behaviour and office equipment.Die steigenden Kosten von Energie und die weltweiten BemΓΌhungen CO2-Emmissionen zu reduzieren, fΓΌhrt aktuell zu einer intensiven Untersuchung der Energieeffizienz von Informations- und Kommunikationstechnologien. WΓ€hrend ein groΓer Teil der aktuellen Forschung sich auf Rechenzentren fokussiert, betrachtet diese Arbeit BΓΌroumgebungen mit ihren Rechnern und dem verbindenden Netzwerk. Eine energieeffiziente Architektur wird vorgeschlagen, die auf die Virtualisierung und Konsolidierung von Diensten setzt, ohne auf zentralisierte Rechenzentrumshardware oder Thin Clients angewiesen zu sein
Next-generation network and service management
X11sciescopu
A Generic Service Model for QoS Management (Service Management in Next Generation Network)
We introduce a generic service model aiming at ensuring Quality of Service management. This modelling approach has been proposed by the Next Generation Network and Service Management project. A fairly high integration level of the tools has been reached using object-oriented paradigm and Model Driven Interoperability approach. We provide an example of Quality of Service management through a Service Level Specification of the Virtual Private Network service. We consider important points to reflect the complexity introduced by the Service Level Agreement and Quality of Service management: reaction model, cooperation model and co-ordination model