Conveners
Storage and filesystems
- Peter van der Reest (DESY)
- Andrei Maslennikov (Universita e INFN, Roma I (IT))
Storage and filesystems: BoF session on OpenAFS
- Arne Wiebalck (CERN)
- Peter van der Reest (DESY)
- Andrei Maslennikov (Universita e INFN, Roma I (IT))
Storage and filesystems
- Peter van der Reest (DESY)
- Andrei Maslennikov (Universita e INFN, Roma I (IT))
Storage and filesystems: Storage and filesystems
- Andrei Maslennikov (Universita e INFN, Roma I (IT))
- Peter van der Reest (DESY)
Dr
Jamie Shiers
(CERN)
16/04/2013, 11:15
Storage & Filesystems
Presentation
2012 saw the publication of the Blueprint Document from the DPHEP study group (DPHEP-2012-001). A summary of this document was used as input to the Krakow workshop on the future European Strategy for Particle Physics and it is to be expected that Data Preservation will be retained in the updated strategy to be formally adopted by the CERN Council in May 2013.
The same year also saw a number...
Mrs
Murielle Gougerot
(LAPP / IN2P3 / CNRS (FR))
16/04/2013, 11:40
Storage & Filesystems
Presentation
Lapp is one of the French IN2P3 labs located in Annecy-le-Vieux. In this presentation, we will explain how we moved our tape backup system from a local infrastructure to a centralized one.
We were using Networker (Legato) software for more than ten years with a small LTO2 library and we switched to a mutualized infrastructure powered by CC IN2P3 using Tivoli (IBM) software.
This talk will...
Arne Wiebalck
(CERN)
16/04/2013, 12:05
Storage & Filesystems
Presentation
During the past year, CERN AFS users were offered up to a 100 times more space and profited from major advances in reducing the access latencies in server overload situations. This presentation will summarise the efforts that made this evolution possible.
In addition, we will also discuss the situation around IPv6 and OpenAFS and present potential options in this area which may require a...
Luca Mascetti
(CERN)
18/04/2013, 13:45
Storage & Filesystems
Presentation
After the strategic decision in 2011 to separate Tier0 activity from analysis, CERN-IT is now operating two large-volume physics file store: CASTOR and EOS.
CASTOR is our historical storage system in production since many years, which now mainly handle the Tier0 activities as well as all tape-backed data.
EOS is in production since 2011 for ATLAS and CMS, it supports the fast-growing...
Massimo Lamanna
(CERN)
18/04/2013, 14:10
Storage & Filesystems
Presentation
In the last two years our team (operating CASTOR and EOS at CERN) invested a lot in monitoring our large disk-servers clusters. CASTOR and EOS disk-servers farms contain about 800 machines each and about 15 PB of usable disk space. Each of them produces logging information at a rate between 30 and 60 GB/day which are vital for monitoring, accounting, troubleshooting and disaster...
Julien Leduc
(CERN)
18/04/2013, 14:35
Storage & Filesystems
Presentation
In 2012, the CERN backup server infrastructure switched to HBA attached SAS expanders and software RAID.
This new hardware gave us the opportunity to perform a deeper analysis of TSM disk usage and introduce newer optimizations to reach higher overall performance.
This presentation gives an overview of the backup service storage infrastructure and usage. Then it explains the different RAID...
Dr
Vladimir Sapunenko
(INFN-CNAF)
18/04/2013, 15:00
Storage & Filesystems
Presentation
efficiency of storage solution in a Multi-petabyte data center consist of multiple factors but the most important is the choice of a Storage model. From analysis of our Storage model which is in production for several years it comes evident that building storage system from PB-sized blocks permits to obtain higher performance at the cost of lower flexibility. It's also important to find right...
Toine Beckers
(DataDirect Networks)
19/04/2013, 09:00
Storage & Filesystems
Presentation
DDN's web object scaler (WOS) offers an alternative approach to managing large scale distributed data. WOS is designed without the overheads associated with traditional filesystems that normally underpin higher-level distributed middleware system. File system checks, fragmentation, RAID sets and inode structures have been removed in WOS and a simple, efficient placement of objects directly to...
Dr
Arne Wiebalck
(CERN)
19/04/2013, 09:25
Storage & Filesystems
Presentation
Recent storage requirements, such as the demand for VM block storage in the Agile Infrastructure project or the need for a scalable, reliable backend for file services such as AFS and NFS, motivate a generic consolidated storage system for CERN IT. With its native file, block, and object interfaces the open-source system Ceph is an attractive vendor-independent candidate to fill this gap. In...
Dr
Arne Wiebalck
(CERN), Mr
Peter van der Reest
(DESY)
19/04/2013, 09:50
Storage & Filesystems
Presentation
Summary of the BoF session on IPv6 and OpenAFS
