426,469 research outputs found
Distributed storage manager system for synchronized and scalable AV services across networks
This article has been made available through the Brunel Open Access Publishing Fund - Copyright @ 2011 Hindawi Publishing CorporationThis paper provides an innovative solution, namely, the distributed storage manager that opens a new path for highly interactive and personalized services. The distributed storage manager provides an enhancement to the MHP storage management functionality acting as a value added middleware distributed across the network. The distributed storage manager system provides multiple protocol support for initializing and downloading both streamed and file-based content and provides optimum control mechanisms to organize the storing and retrieval of content that are remained accessible to other multiple heterogeneous devices
STORM: FUNCTIONAL DESCRIPTION
The StoRM service is a storage resource manager for generic disk based storage systems separating the data management layer from the underlying storage system
STORM FAQ AND TROUBLESHOOTING
The StoRM service is a storage resource manager for generic disk based storage systems separating the data management layer from the underlying storage system
STORM: FUNCTIONAL DESCRIPTION
The StoRM service is a storage resource manager for generic disk based storage systems separating the data management layer from the underlying storage system
A support architecture for reliable distributed computing systems
The Clouds kernel design was through several design phases and is nearly complete. The object manager, the process manager, the storage manager, the communications manager, and the actions manager are examined
Ontology View Query Management
Like views in relational databases, ontology views are expressed as queries, but over source ontologies rather than tables. To enhance the reusability of such views, we are constructing a view Query Manager application. The Query Manager allows queries to be edited, executed, and stored for reuse. View queries are discoverable by searching the Query Manager's metadata catalog. The Query Manager also supports the storage of materialized view results upon which further queries may be issued
CASTOR status and evolution
In January 1999, CERN began to develop CASTOR ("CERN Advanced STORage
manager"). This Hierarchical Storage Manager targetted at HEP applications has
been in full production at CERN since May 2001. It now contains more than two
Petabyte of data in roughly 9 million files. In 2002, 350 Terabytes of data
were stored for COMPASS at 45 MB/s and a Data Challenge was run for ALICE in
preparation for the LHC startup in 2007 and sustained a data transfer to tape
of 300 MB/s for one week (180 TB). The major functionality improvements were
the support for files larger than 2 GB (in collaboration with IN2P3) and the
development of Grid interfaces to CASTOR: GridFTP and SRM ("Storage Resource
Manager"). An ongoing effort is taking place to copy the existing data from
obsolete media like 9940 A to better cost effective offerings. CASTOR has also
been deployed at several HEP sites with little effort. In 2003, we plan to
continue working on Grid interfaces and to improve performance not only for
Central Data Recording but also for Data Analysis applications where thousands
of processes possibly access the same hot data. This could imply the selection
of another filesystem or the use of replication (hardware or software).Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics
(CHEP03), La Jolla, Ca, USA, March 2003, 2 pages, PDF. PSN TUDT00
Mass Storage Management and the Grid
The University of Edinburgh has a significant interest in mass storage
systems as it is one of the core groups tasked with the roll out of storage
software for the UK's particle physics grid, GridPP. We present the results of
a development project to provide software interfaces between the SDSC Storage
Resource Broker, the EU DataGrid and the Storage Resource Manager. This project
was undertaken in association with the eDikt group at the National eScience
Centre, the Universities of Bristol and Glasgow, Rutherford Appleton Laboratory
and the San Diego Supercomputing Center.Comment: 4 pages, 3 figures, Presented at Computing for High Energy and
Nuclear Physics 2004 (CHEP '04), Interlaken, Switzerland, September 200
Energy Storage Sharing Strategy in Distribution Networks Using Bi-level Optimization Approach
In this paper, we address the energy storage management problem in
distribution networks from the perspective of an independent energy storage
manager (IESM) who aims to realize optimal energy storage sharing with
multi-objective optimization, i.e., optimizing the system peak loads and the
electricity purchase costs of the distribution company (DisCo) and its
customers. To achieve the goal of the IESM, an energy storage sharing strategy
is therefore proposed, which allows DisCo and customers to control the assigned
energy storage. The strategy is updated day by day according to the system
information change. The problem is formulated as a bi-level mathematical model
where the upper level model (ULM) seeks for optimal division of energy storage
among Disco and customers, and the lower level models (LLMs) represent the
minimizations of the electricity purchase costs of DisCo and customers.
Further, in order to enhance the computation efficiency, we transform the
bi-level model into a single-level mathematical program with equilibrium
constraints (MPEC) model and linearize it. Finally, we validate the
effectiveness of the strategy and complement our analysis through case studies
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