Speaker
Dr
Andrei Tsaregorodtsev
(CPPM-IN2P3-CNRS)
Description
DIRAC Project is developing software for building distributed computing systems for the needs of
research communities. It provides a complete solution covering both Workload Management and
Data Management tasks of accessing computing and storage resources. The Data Management
subsystem of DIRAC includes all the necessary components to organize data in distributed storage
systems. It has a versatile File Catalog (DFC) service to keep track of data file physical replicas. This
service is a central component to build a logical File System of DIRAC presenting all the distributed
storage elements as a single entity for the users with transparent access to the data. The DFC service
provides also a Metadata Catalog functionality to classify data with user defined tags. This can be
used for an efficient search of the data necessary for a particular analysis. The Data Management
system provides also support for usual data management tasks of uploading/downloading, replication,
removal files with a special emphasis on the bulk data operations involving large numbers of files.
Automation of data operations driven by new data registrations is also possible. In this controbution
we will make an overview of the DIRAC Data Management System and will give examples of its usage
by several research communities.
Primary author
Dr
Andrei Tsaregorodtsev
(CPPM-IN2P3-CNRS)
