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cluster:eos [2019/02/13 15:30] – bernet | cluster:eos [2019/09/05 16:57] – [XRootD Copy Command] bernet |
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==== EOS ==== | ==== EOS ==== |
EOS is an open-source storage software solution to manage multi PB storage for the CERN Large Hadron Collidor LHC. Core of the implementation is the XRootD framework providing a feature-rich remote access protocol. | EOS is a software solution that aims to provide fast and reliable multi-PB disk-only storage technology for both LHC and non-LHC use-cases at CERN. The core of the implementation is the XRootD framework which provides feature-rich remote access protocol. The storage system is running on commodity hardware with disks in JBOD configuration. It is written mostly in C/C++, with some of the extra modules in Python. Files can be accessed via native XRootD protocol, a POSIX-like FUSE client or HTTP(S) & WebDav protocol. |
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==== EOS Command ==== | ==== EOS Command ==== |
EOS commands and Linux commands in the EOS file system are not very resource efficient. If you need to transfer large amount of data, use the ''xrdcp'' command: | EOS commands and Linux commands in the EOS file system are not very resource efficient. If you need to transfer large amount of data, use the ''xrdcp'' command: |
* ''<nowiki>xrdcp root://eoslhcb.cern.ch//eos/lhcb/user/b/bla/eos_tutorial/eos.txt eos.txt</nowiki>'' | * ''<nowiki>xrdcp root://eoslhcb.cern.ch//eos/lhcb/user/b/bla/eos_tutorial/eos.txt eos.txt</nowiki>'' |
* ''<nowiki>xrdcp eos.txt root://eoslhcb.cern.ch//eos/lhcb/user/b/bla/eos_tutorial/eos.txteos.txt</nowiki>'' | * ''<nowiki>xrdcp eos.txt root://eoslhcb.cern.ch//eos/lhcb/user/b/bla/eos_tutorial/eos.txt eos.txt</nowiki>'' |
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