Time-stamp: <2004-12-01 21:26:55 gokieli>
Hints & Tips for the Use of
CASTOR in DELPHI
What is CASTOR?
CASTOR is an implementation of
a Managed Storage system, developed at CERN, which allows users to store and
retrieve large files (please do not use it for files below
~20MB!). It presents you with a file name space, which means you can store and
manage your own files. All DELPHI users have their own CASTOR home directory,
with an associated environment variable
$CASTOR_HOME = /castor/cern.ch/user/u/username
There is a pool of tapes behind this name space, to which your files are
copied. All the administrative details of tape names, file sequences etc. are
dealt with by the CASTOR software.
For DELPHI, CASTOR is mainly used for archiving purpose, eg to keep a copy of the data on tape.
It is discouraged to use CASTOR. Please use EOS instead which is disk based.
Please note that direct access to CASTOR via RFIO (via libshift.so) no longer works.
U. Schwickerath, May 20, 2019