1 / 8

HOW TO USE GRID STORAGE RESOURCES Branimir Acković acko@scl.rs Scientific Computing Laboratory

HOW TO USE GRID STORAGE RESOURCES Branimir Acković acko@scl.rs Scientific Computing Laboratory Institute of Physics Belgrade, Serbia. Overview. How to find available storage elements File transfer protocols LCG CLI Utils Logical File Catalog. File Transfer Protocols.

kerryn
Download Presentation

HOW TO USE GRID STORAGE RESOURCES Branimir Acković acko@scl.rs Scientific Computing Laboratory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HOW TO USE GRID STORAGE RESOURCES Branimir Acković acko@scl.rs Scientific Computing Laboratory Institute of Physics Belgrade, Serbia

  2. Overview • How to find available storage elements • File transfer protocols • LCG CLI Utils • Logical File Catalog

  3. File Transfer Protocols • 1st Generation – GDMP + edg-replica-managerC++ base, used Globus for Secure file transfer • 2nd Generation – uses web services via XML

  4. Data Management Terminology • GUID – Globally Unique Identifier • LFN – Logical File Name • SURL - SiteURL

  5. LCG-Util CLI • lcg-aa - add an alias in the RMC or the LFC for a given GUID • lcg-cp - copy a Grid file to a local destination • lcg-cr - copy and register a file • lcg-del - delete one file (either one replica or all replicas)‏ • lcg-gt - get the TURL for a given SURL and transfer protocol • lcg-la - list the aliases for a given LFN, GUID or SURL • lcg-lg - get the GUID for a given LFN or SURL • lcg-lr - list the replicas for a given LFN, GUID or SURL • lcg-ra - remove an alias in the RMC or the LFC for a given GUID • lcg-rep - copy a file from one Storage Element to another Storage Element and registers it in the LRC or the LFC • lcg-rf - register in the LRC (and optionally in the RMC) or the LFC a file residing on an SE • lcg-sd - set file status to "Done" for a given SURL in a specified request • lcg-uf - unregister in the LRC or the LFC a file residing on an SE get the GUID for a given LFN or SURL

  6. LFC CLI • lfc-chmod - change access mode of a LFC directory/file in the name server • lfc-chown - change owner and group of a LFC directory/file in the name server • lfc-delcomment - delete the comment associated with a file/directory • lfc-entergrpmap - define a new group entry in Virtual Id table • lfc-enterusrmap - define a new user entry in Virtual Id table • lfc-getacl - get LFC directory/file access control lists • lfc-ln - make a symbolic link to a file or a directory in the LFC Name Server • lfc-ls - list LFC name server directory/file entries • lfc-mkdir - make LFC directory in the name server • lfc-modifygrpmap - modify group entry corresponding to a given virtual gid • lfc-modifyusrmap - modify user entry corresponding to a given virtual uid • lfc-rename - rename a LFC file or directory in the name server • lfc-rm - remove LFC files or directories in the name server • lfc-rmgrpmap - suppress group entry corresponding to a given virtual gid or group name get the GUID for a given LFN or SURL

  7. LFC CLI • lfc-rmusrmap - suppress user entry corresponding to a given virtual uid or user name • lfc-setacl - set LFC directory/file access control lists • lfc-setcomment - add/replace a comment associated with a file/directory

  8. Links • http://grid-deployment.web.cern.ch/grid-deployment/documentation/LFC_DPM/lcg_util /html/ • https://twiki.cern.ch/twiki/bin/view/LCG/LfcApi

More Related