HEPiX Spring 2014 Workshop

Session

Storage and file systems

May 22, 2014, 9:00 AM

Auditorium Marcel Vivargent (LAPP)

Conveners

Storage and file systems

• Arne Wiebalck (CERN)
• Peter van der Reest (DESY)

Storage and file systems: Storage and file systems

• Peter van der Reest (DESY)
• Arne Wiebalck (CERN)

58. Batch system data locality via managed caches

Max Fischer (KIT - Karlsruhe Institute of Technology (DE))

5/22/14, 9:00 AM

Storage & Filesystems

Modern data processing solutions increasingly rely on data locality to achieve high data access rates and scalability. In contrast the common HEP system architectures emphasis uniform resource pools with minimal locality, allowing even for cross-site data access. The concept for the new High Performance Data Analysis (HPDA) Tier3 at KIT aims at introducing data locality to HEP batch systems....

10. Ceph at CERN: one year on

Dr Daniel van der Ster (CERN)

5/22/14, 9:25 AM

Storage & Filesystems

Ceph was introduced at CERN in early 2013 as a potential solution to new use-cases (e.g. cloud block storage) while also providing a path toward a consolidated storage backend for other services including AFS, NFS, etc... This talk will present the outcome of the past year of testing and production experience with Ceph. We will present our real operations experience and lessons-learned, and...

33. Ceph at the UK Tier 1

George Ryall (STFC)

5/22/14, 9:50 AM

Storage & Filesystems

We are trialling the use of Ceph both as a file-system and as a cloud storage back end. I will present our experiences so far.

44. Update on CERN tape status

German Cancio Melia (CERN)

5/22/14, 10:15 AM

Storage & Filesystems

CERN stores over 100PB of data on tape via CASTOR and TSM. This talk will present the current status of the CERN tape infrastructure, with a particular focus on tape performance and efficiency and the status of the large media repacking exercise.

67. The DESY Big Data Cloud Service

Mr Peter van der Reest (DESY)

5/22/14, 11:10 AM

Storage & Filesystems

DESY -IT- has implemented a cloud storage service on the basis of dCache. The talk will describe architecture and service concepts.

60. Update on the bit-preservation Working Group

German Cancio Melia (CERN)

5/22/14, 11:35 AM

Storage & Filesystems

In this talk, we will provide an update of bit-level preservation WG activities, notable on the ongoing work on a set of recommendations and on a model for estimating long-term (10-20-30 years) archiving cost outlooks.