| Published Articles | |
| Title | Ceph-based storage services for Run2 and beyond |
| Author(s) | van der Ster, Daniel C (CERN) ; Lamanna, Massimo (CERN) ; Mascetti, Luca (CERN) ; Peters, Andreas J (CERN) ; Rousseau, Herv (CERN) |
| Publication | 2015 |
| Number of pages | 4 |
| In: | J. Phys.: Conf. Ser. 664 (2015) 042054 |
| In: | 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.042054 |
| DOI | 10.1088/1742-6596/664/4/042054 |
| Subject category | Computing and Computers |
| Abstract | In 2013, CERN IT evaluated then deployed a petabyte-scale Ceph cluster to support OpenStack use-cases in production. With now more than a year of smooth operations, we will present our experience and tuning best-practices. Beyond the cloud storage use-cases, we have been exploring Ceph-based services to satisfy the growing storage requirements during and after Run2. First, we have developed a Ceph back-end for CASTOR, allowing this service to deploy thin disk server nodes which act as gateways to Ceph, this feature marries the strong data archival and cataloging features of CASTOR with the resilient and high performance Ceph subsystem for disk. Second, we have developed RADOSFS, a lightweight storage API which builds a POSIX-like filesystem on top of the Ceph object layer. When combined with Xrootd, RADOSFS can offer a scalable object interface compatible with our HEP data processing applications. Lastly the same object layer is being used to build a scalable and inexpensive NFS service for several user communities. |
| Copyright/License | publication: © 2015-2025 The Author(s) (License: CC-BY-3.0) |
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