Storage resource manager version 2.2: design, implementation, and testing experience
Storage resource manager version 2.2: design, implementation, and testing experience
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存储资源管理器2.2版：设计、实现和测试经验
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发表时间：
2008
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通讯作者：
R. Zappi
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作者：
F. Donno;L. Abadie;Paolo Badino;J. Baud;E. Corso;S. D. Witt;P. Fuhrmann;Junmin Gu;B. Koblitz;S. Lemaitre;M. Litmaath;D. Litvintsev;G. Presti;L. Magnoni;G. McCance;T. Mkrtchan;Rémi Mollon;Vijaya L. Natarajan;T. Perelmutov;D. Petravick;A. Shoshani;A. Sim;David E. Smith;P. Tedesco;R. Zappi
存储服务是全球大型强子对撞机计算网格基础设施的重要组成部分，该基础设施跨越 200 多个站点，为高能物理大型强子对撞机社区提供计算和存储资源。 CERN 的四个大型强子对撞机实验每年收集多达数十 PB 的数据。为了处理这些大数据量，为 WLCG 站点采用的各种存储解决方案建立一个协议和一个非常有效的接口非常重要。在这项工作中，我们报告了在定义存储资源管理器 v2.2 协议期间获得的经验。我们特别关注为增强界面并使其适合 WLCG 社区使用而进行的研究。目前，有 5 种不同的存储解决方案实现了 SRM v2.2 接口：BeStMan (LBNL)、CASTOR（CERN 和 RAL）、dCache（DESY 和 FNAL）、DPM (CERN) 和 StoRM（INFN 和 ICTP）。在对协议进行详细的内部审查后，编写了各种测试套件来确定最有效的测试集：来自 CERN 的 S2 测试套件和来自 LBNL 的 SRM-Tester 测试套件。此类测试套件有助于验证所提议协议的一致性和连贯性，并验证现有的实现。我们总结了我们的工作，描述了所取得的成果。
Storage Services are crucial components of the Worldwide LHC Computing Grid Infrastructure spanning more than 200 sites and serving computing and storage resources to the High Energy Physics LHC communities. Up to tens of Petabytes of data are collected every year by the four LHC experiments at CERN. To process these large data volumes it is important to establish a protocol and a very efficient interface to the various storage solutions adopted by the WLCG sites. In this work we report on the experience acquired during the definition of the Storage Resource Manager v2.2 protocol. In particular, we focus on the study performed to enhance the interface and make it suitable for use by the WLCG communities. At the moment 5 different storage solutions implement the SRM v2.2 interface: BeStMan (LBNL), CASTOR (CERN and RAL), dCache (DESY and FNAL), DPM (CERN), and StoRM (INFN and ICTP). After a detailed inside review of the protocol, various test suites have been written identifying the most effective set of tests: the S2 test suite from CERN and the SRM-Tester test suite from LBNL. Such test suites have helped verifying the consistency and coherence of the proposed protocol and validating existing implementations. We conclude our work describing the results achieved.