Speaker
Dr
Yaodong CHENG
(Institute of High Energy Physics,Chinese Academy of Sciences)
Description
Some large experiments at IHEP will generate more than 5 Petabytes of data in the next few years, which brings great challenges for data analysis and storage. CERN CASTOR version 1 was firstly deployed at IHEP in 2003, but now it is difficult to meet the new requirements. Taking into account the issues of management, commercial software etc., we don’t update CASTOR from version 1 to version 2. Instead, based on CASTOR version 1 and MySQL, we developed a new open-source software with good scalability, high performance and easy-to-use features. This paper will give the introduction of our requirements, the design and implementation of new stager, which we call DCC (disk cache for CASTOR), MySQL 5.x compatibility, LTO4 tape support, the deployment, monitoring, alerting and so on. DCC adopts database centric architecture just like CASTOR version 2 stager, which makes it more modular and flexible. The detailed design and performance measure of DCC will also be described in this paper.
Primary author
Dr
Yaodong CHENG
(Institute of High Energy Physics,Chinese Academy of Sciences)
Co-authors
Prof.
Gang CHEN
(Institute of High Energy Physics,Chinese Academy of Sciences)
Mr
Ke Ding
(Institute of High Energy Physics,Chinese Academy of Sciences)
Ms
Qiuling YAO
(Institute of High Energy Physics,Chinese Academy of Sciences)
Mr
Wei Zheng
(Institute of High Energy Physics,Chinese Academy of Sciences)
