Currently proposed GSSD Sub-Groups

Glue Schema 2.0 for Storage Services

The goal of this sub-group is to come up with a data model for Storage Service for the Glue Schema 2.0. A mailing list has been setup: The web archive can be found here: The list is moderated by Laurence Field (CERN).

SRM v1-v2

The goal of this sub-group is to find a solution for the coexistence of SRM v1 and v2 endpoints for a given implementation. CASTOR and DPM are the first target implementations. The test UI setup at CERN can be used for this purpose.

Proposed members

  • Stephen Burke: coordinator (RAL)
  • Jens Jensen (RAL)
  • John Gordon (RAL)
  • Greig Cowan (Edinburgh)

Tentative Milestone

15 of March 2007

A document is attached:


The goal of this sub-group is to find a solution to the following issues:

  • It could be necessary to be able to peform massive rename operations on file catalogues. This is normally a costly and time consuming operation that can make the entire Grid unavailable for long time.
  • During the testing phase, how should new data be registered in the catalogue ? What happens in case a roll back to SRM v1 is needed ?

Proposed members

  • CERN ?

Tentative Milestone

End of April 2007

Experiment Requirements

The goal of this sub-group is to provide GSSD with precise experiment requirements for implementing Storage Classes, Space Token Descriptions I/O buffers at sites.

Proposed members

  • Flavia Donno: coordinator (CERN)
  • Latchezar Betev (Alice)
  • Miguel Branco, Dietrich Liko (ATLAS)
  • Stefano Belforte, Ian Fisk (CMS)
  • Nick Brook (LHCb)

Tentative Milestone

15 of March 2007

LHCb and ATLAS setup at FZK, IN2P3, and SARA

Setup a working storage environment for LHCb and ATLAS

Proposed members

  • Representative for the sites involved
  • Miguel Branco, Dietrich Liko (ATLAS)
  • Nick Brook (LHCb)

Tentative Milestone

End of May 2007


The goal of this sub-group is to come up with a first list of information that can be extracted from currently available MSS management tools and to come up with a first prototype of indipendent interface that can be used to create "sensors" that could store the relative info to be displayed initially with SAM or GridView.

Proposed members

  • Giacinto Donvito, Mirco Ciriello (INFN): coordinators
  • Jean-Philippe Baud (DPM)
  • Luca Magnoni (StoRM)
  • Greig Cowan (Edinburgh)
  • Patrick Fuhrmann (dCache)
  • Julia Andreeva (ARDA: Experiment Dashboard)
  • Richardo Rocha (ARDA: Experiment Dashboard)

Tentative Milestone

End of October 2007

Few useful documents are attached:

-- Flavia Donno - 04 June 2007

Topic attachments
I Attachment History Action Size Date Who Comment
Microsoft Word filedoc SRM2Recommendations10.doc r1 manage 53.5 K 2007-03-16 - 14:40 UnknownUser Recommendations about how to configure SRM2 endpoints
PDFpdf report_dpm.pdf r2 r1 manage 43.6 K 2007-05-16 - 12:08 UnknownUser Analysis of the existing monitoring tools for the Disk Pool Manager (DPM)
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Topic revision: r11 - 2007-10-11 - FlaviaDonno
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