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Wyszukujesz frazę "Nikolow, D." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Performance aspects of data delivery using hierarchical storage management systems in the grid
    Autorzy:
    Nikolow, D.
    Słota, R.
    Kitowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1964210.pdf
    Data publikacji:
    2004
    Wydawca:
    Politechnika Gdańska
    Tematy:
    HSM
    grids
    time estimation
    Opis:
    Grid computing has recently gained in popularity. Grid applications can be very demanding of the data storage facilities in the Grid. The existing data grid services are often insufficient and additional optimization of the data access is necessary. This paper presents research concerning the optimization aspects of data management for Hierarchical Storage Management (HSM) systems in the Grid.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2004, 8, 4; 537-548
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Policy-based sla storagemanagement model fordistributeddata storage services
    Autorzy:
    Nikolow, D.
    Słota, R.
    Polak, S.
    Pogoda, M.
    Kitowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/305439.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    distributed storage systems
    quality of service
    service level agreement
    management model
    heuristics
    Opis:
    There is high demand for storage related services supporting scientists in their research activities. Those services are expected to provide not only capacity but also features allowing for more exible and cost ecient usage. Such features include easy multiplatform data access, long term data retention, support for performance and cost dierentiating of SLA restricted data access. The paper presents a policy-based SLA storage management model for distributed data storage services. The model allows for automated management of distributed data aimed at QoS provisioning with no strict resource reservation. The problem of providing users with the required QoS requirements is complex, and therefore the model implements heuristic approach for solving it. The corresponding system architecture, metrics and methods for SLA focused storage management are developed and tested in a real, nationwide environment. Keywords distributed storage systems, quality of service, service level agreement, management model, heuristics.
    Źródło:
    Computer Science; 2018, 19 (4); 403-429
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Management methods in SLA-aware distributed storage systems
    Autorzy:
    Nikolow, D.
    Słota, R.
    Lakovic, D.
    Winiarczyk, P.
    Pogoda, M.
    Kitowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/305462.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    service level agreements
    mass storage systems
    quality of service
    Opis:
    Traditional data storage systems provide access to user’s data on the "best effort" basis. While this paradigm is sufficient in many use cases it becomes an obstacle for applications with Quality of Service (QoS) constraints. Service Level Agreement (SLA) is a part of the contract agreed between the service provider and the client and contains a set of well defined QoS requirements regarding the provided service and the penalties applied in case of violations. In the paper we propose a set of SLA parameters and QoS metrics relevant to data storage processes and the management methods necessary for avoiding SLA violations. A key assumption in the proposed approach is that the underlying distributed storage system does not provide functionality for resource or bandwidth reservation for a given client request.
    Źródło:
    Computer Science; 2012, 13 (3); 35-44
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A toolkit for storage QoS provisioning for data-intensive applications
    Autorzy:
    Słota, R.
    Król, D.
    Skałkowski, K.
    Orzechowski, M.
    Nikolow, D.
    Kryza, B.
    Wrzeszcz, M.
    Kitowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/305571.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    data-intensive application
    storage management
    QoS
    grid
    Opis:
    This paper describes a programming toolkit developed in the PL-Grid project, named QStorMan, which supports storage QoS provisioning for data-intensive applications in distributed environments. QStorMan exploits knowledgeoriented methods for matching storage resources to non-functional requirements, which are defined for a data-intensive application. In order to support various usage scenarios, QStorMan provides two interfaces, such as programming libraries or a web portal. The interfaces allow to define the requirements either directly in an application source code or by using an intuitive graphical interface. The first way provides finer granularity, e.g., each portion of data processed by an application can define a different set of requirements. The second method is aimed at legacy applications support, which source code can not be modified. The toolkit has been evaluated using synthetic benchmarks and the production infrastructure of PL-Grid, in particular its storage infrastructure, which utilizes the Lustre file system.
    Źródło:
    Computer Science; 2012, 13 (1); 63-73
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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