35523
Conferences
false
[["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]]
Institute of Physics AS CR
fialal@fzu.cz
8298
chep2009@particle.cz
computing
particle physics
high energy
nuclear
physics
chep
prague
2009
CHEP 2009
International Conference on Computing in High Energy and Nuclear Physics
False
Prague
Prague Congress Centre
5. května 65, 140 00 Prague 4, Czech Republic
2009-03-21T08:00:00
2009-03-27T13:30:00
2008-06-05T14:32:25
2012-03-01T14:03:28
Europe/Prague
CESNET
jan.gruntorad@cesnet.cz
Institute of Physics
milos.lokajicek@cern.ch
553
false
[["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]]
Tuesday 087
1
poster
A Filesystem to access CASTOR
CERN
alexander.mazurov@cern.ch
CERN
alexander.mazurov@cern.ch
Dr.
CERN
niko.neufeld@cern.ch
Prague
Prague Congress Centre
5. května 65, 140 00 Prague 4, Czech Republic
2009-03-24T08:00:00
2009-03-24T08:20:00
00:20
CASTOR provides a powerful and rich interface for managing files and pools
of files backed by tape-storage. The API is modelled very closely on that of
a POSIX filesystem, where part of the actual I/O part is handled by the rfio
library. While the API is very close to POSIX it is still separated, which
unfortunately makes it impossible to use standard tools and scripts straight
away. This is particularly inconvenient when applications are written in
languages other than C/C++ such as is frequently the case in web-apps.
Here up to now the only the recourse was to use command-line utilities and
parse their output, which is clearly a kludge.
We have implemented a complete POSIX filesystem to access CASTOR using FUSE
(Filesystem in Userspace) and have successfully tested and used this on SLC4
and SLC5 (both in 32 and 64 bit). We call it CastorFS. In this paper we
will present its architecture and implementation, with emphasis on
performance and caching aspects.
poster
Poster
doc
http://indico.cern.ch/images/word.png
word file
ppt
http://indico.cern.ch/images/powerpoint.png
powerpoint file
pdf
http://indico.cern.ch/images/pdf_small.png
pdf file
odt
http://indico.cern.ch/images/writer.png
writer file
odp
http://indico.cern.ch/images/impress.png
presentation file
ods
http://indico.cern.ch/images/calc.png
spreadsheet file
other
http://indico.cern.ch/images/file_small.png
unknown type file
link
http://indico.cern.ch/images/link.png
link
2013-05-19
2013-05-20