Storage

The storage hardware infrastructure is made up of a set of disk servers (providing more than 8000 TB) accessible through grid protocols.

The architecture also includes a set of about twenty servers, hosting the services necessary for the proper functioning of MUST. These include storage and jobs management services, monitoring and administration tools for the mesocenter, and MUST deployment and operating tools …

Several types of storage are available:

A shared file system

MUST platform file system allows sharing of workspaces between all the computing servers. This solution allows the users to execute their codes on the platform without modification and without impact on the performance compared to an execution which would be done on their own workstation. The infrastructure is based on Ceph, as open-source technology.

A capacitive file system

Alongside the shared file system, MUST platform offers, through grid protocols (EGI), a large storage space managed by the dCache middleware. Based on standard technologies, this storage space is sized to be able to manage and handle large volumes of data of ATLAS, one of the four LHC experiments at CERN.