lbCta - Interface to the CERN Tape Archive spinner disks service

This package implements a set of console scripts to interface with the CERN Tape Archive (CTA) in view of listing and recalling files and directories from tape.

Name

lhcb-online-cta

Description

Interface to EOS/XROOTD suitable for use with the EOSCTA spinner disks tape archiving

The EOSCTA spinner disks pool is a EOS disk pool that can be used for recalling files that are stored on the CERN Tape Archive service. These files, once recalled can be copied to usable locations using XRootD (e.g. with xrdcp). Files on the EOSCTA spinner disks are not directly usable.

Usage

$ lbcta-status -h
usage: lbcta-status [-h] [-l LOG_LEVEL] [--version] -e ENDPOINT -p PATH [-r] [-d]

Interface to CTA disk pools - list files

optional arguments:
  -h, --help            show this help message and exit
  -l LOG_LEVEL, --loglevel LOG_LEVEL
                        logging level (default = INFO)
  --version             print version and exits
  -e ENDPOINT, --endpoint ENDPOINT
                        EOS root end point
  -p PATH, --path PATH  EOS absolute path
  -r, --recursive       handle recursively directories
  -d, --directory       also prints directory entries

$ lbcta-recall -h
usage: lbcta-recall [-h] [-l LOG_LEVEL] [--version] -p PATH -e ENDPOINT [-r] [-d]

Interface to CTA disk pools - recall files from tape

optional arguments:
  -h, --help            show this help message and exit
  -l LOG_LEVEL, --loglevel LOG_LEVEL
                        logging level (default = INFO)
  --version             print version and exits
  -p PATH, --path PATH  EOS absolute path
  -e ENDPOINT, --endpoint ENDPOINT
                        EOS root end point
  -r, --recursive       handle recursively directories
  -d, --directory       also prints directory entries

$ lbcta-query -h
usage: lbcta-query [-h] [-l LOG_LEVEL] [--version] -e ENDPOINT -p PATH [-r] [--wait] [--silent]

Interface to CTA disk pools - query status of files without disk replica

optional arguments:
  -h, --help            show this help message and exit
  -l LOG_LEVEL, --loglevel LOG_LEVEL
                        logging level (default = INFO)
  --version             print version and exits
  -e ENDPOINT, --endpoint ENDPOINT
                        CTA root end point
  -p PATH, --path PATH  CTA absolute path
  -r, --recursive       handle recursively directories
  --wait                wait for all requested file(s) to be copied to disk
  --silent              silently wait for all requested file(s) to be available to disk

Examples

Detailed usage examples can be found in https://lbtwiki.cern.ch/bin/view/Online/OnlineOfflineEOSCTA

Installation

pip install lhcb-online-cta

Authors and acknowledgment

Frédéric Hemmer - CERN/Experimental Physics Department

License

Copyright © 2024-2025 CERN for the benefit of the LHCb collaboration