z/OS Workload Management – Überblick, Stärken und Ausblick (z/OS Workload Management – Overview, Strength and Outlook)

2006 ◽  
Vol 48 (5) ◽  
Author(s):  
Robert Vaupel ◽  
Ulrich Hild ◽  
Stefan Wirag

Eine der besonderen Stärken der z9* Mainframe-Plattform und des z/OS* Betriebssystems ist die Fähigkeit, unterschiedliche Arbeit zum gleichen Zeitpunkt innerhalb eines z/OS Systems und über mehrere Partitionen, welche dieselbe Hardware benutzen, auszuführen. Die Funktion, die wesentlich dazu beiträgt, ist der z/OS Workload Manager (WLM). WLM regelt nicht nur den Zugang zu CPU, I/O, Speicher und Prozessen. Er verwaltet Betriebsmittel auch über mehrere virtuelle Systeme, die sich dieselbe Hardware teilen und mit Betriebssystemen, wie z/OS, Linux und zVM laufen. Ferner hilft es Verteilungskomponenten und Produkten, Arbeit für eine Mehrsystem-Workload in einem {Parallel Sysplex* Cluster} zu verteilen. Als nächster Schritt verlässt das WLM-Konzept die z9 Plattform und beginnt die Rechner, die den Mainframe umgeben, mitzuverwalten, sodass es letztlich zu einer vollständigen Lösung für das Performance Management einer IT-Infrastruktur eines Unternehmens wird. Diese neue Funktion ist der Enterprise Workload Manager (EWLM). Der vorliegende Artikel gibt einen Überblick über die fundamentalen Konzepte des z/OS Workload Manager und beschreibt den nächsten Schritt in der Entwicklung hin zum unternehmensweiten Workload Management.

Author(s):  
Eman A. Maghawry ◽  
Rasha M. Ismail ◽  
Nagwa. L. Badr ◽  
Mohamed F. Tolba

Workload Management is a performance management process in which an autonomic database management system on a cloud environment efficiently makes use of its virtual resources. Workload management for concurrent queries is one of the challenging aspects of executing queries over the cloud. The core problem is to manage any unpredictable overload with respect to varying resource capabilities and performances. This chapter proposes an efficient workload management system for controlling the queries execution over a cloud. The chapter presents architecture to improve the query response time. It handles the user's queries then selecting the suitable resources for executing these queries. Furthermore, managing the life cycle of virtual resources through responding to any load that occurs on the resources. This is done by dynamically rebalancing the queries distribution load across the resources in the cloud. The results show that applying this Workload Management System improves the query response time by 68%.


2020 ◽  
Author(s):  
Yuliia Peniak ◽  
◽  
Nataliia Horokhovatska ◽  

The main purpose of any enterprise in the market economy is to obtain high financial results. One of the main conditions for the effective functioning of the enterprise is ability to generate profit in the amount that will create the financial basis for further development and expansion of the enterprise, comply with social and material needs, ensure competitiveness in the market of goods and services. The need for accounting and analytical management of financial results stems from needs of owners, the state and employees in information that will enable them to identify patterns and trends in financial results, identify and assess the main factors influencing the process of their creation, distribution and usage, identify reserves and thus increase the level of profitability. Despite the significant scientific contribution in the field of research of financial results of the enterprises, the issue of improvement aims to the accounting and analytical maintenance of management of financial results of the enterprise remains actual. That is why the purpose of the study is to substantiate the theoretical and practical aspects and develop approaches to improving the mechanism of formation of accounting and analytical support for the management of financial results of the enterprise. Accounting and analytical management of financial results of the enterprise is a set of interconnected elements of production and management system, activities carried out by the subject of management, creation of a certain structure, as well as collection, accumulation, storage and analysis of information necessary for effective operation of the enterprise. The main components of the study of accounting and analytical support of financial performance management are the formation of methods of analysis, control and forecasting of financial results, which requires specification of the components of the analytical and controlled process within the organizational and information model. Namely, the formation of reliable information about the financial condition of the enterprise, the analysis of economic indicators of the enterprise is of great importance in the system of general evaluation of business entities. Their research makes it possible to assess the dynamics of the structure of income and expenses, to determine the impact of factors on the company's profit from various activities, as well as to find reserves to increase the net profit of enterprises. Thus, the improvement of accounting and analytical support of enterprise management is based on the use of modern forms, methods and principles that place new demands on the formation of unbiased, complete, timely, clear and useful accounting and analytical information about the enterprise and its financial results.


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