Comprehensive Monitoring for Heterogeneous Geographically Distributed Storage

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Ratnikova, N.^1 ; Karavakis, E.^2 ; Lammel, S.^1 ; Wildish, T.^3

Fermi National Accelerator Laboratory, United States^1

CERN, Switzerland^2

Princeton University, United States^3

关键词: Comprehensive monitoring;    Distributed storage;    Heterogeneous storages;    Monitoring system;    Storage capacity;    Storage spaces;    Storage utilization;    System deployment;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/4/042055/pdf
DOI  :  10.1088/1742-6596/664/4/042055

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Storage capacity at CMS Tier-1 and Tier-2 sites reached over 100 Petabytes in 2014, and will be substantially increased during Run 2 data taking. The allocation of storage for the individual users analysis data, which is not accounted as a centrally managed storage space, will be increased to up to 40%. For comprehensive tracking and monitoring of the storage utilization across all participating sites, CMS developed a space monitoring system, which provides a central view of the geographically dispersed heterogeneous storage systems. The first prototype was deployed at pilot sites in summer 2014, and has been substantially reworked since then. In this paper we discuss the functionality and our experience of system deployment and operation on the full CMS scale.