CASTOR REVIEW - JUNE 2006

6 Jun 2006, 14:00 → 9 Jun 2006, 13:00 Europe/Zurich

32/1-A24 (CERN : VRVS - MOUNTAIN virtual room)

Assess the readiness of the Castor2 service for LHC production

BACKGROUND READING Reading Material

CERN MoU commitments CERN MoU commitments

Charge to the Review

• Charge.pdf
• Charge.pdf
• Charge to the Review Committee

Report of the Committee Report of the Committee

Response to Review Report Castor_review_response.doc

Tuesday 6 June

Project Overview

General introduction and overview on Castor Project
- scope and purpose of Castor
- brief history of its evolution
- main requirements at time Castor was designed
- new requirements (SRM?, xrootd?,...)
Architectural issues
- of software design, main components
- of implementation (no. of disk servers, ...)
General Overview on current status and plans
- what has been delivered so far
- what is in the plans (deliverables and timescales...)
Resources available to project
- team members and roles etc.

1 Introduction and Overview

Speaker: Olof Barring

Slides Introduction-1.pdf Introduction-1.ppt

15:30 break

2 Architecture Overview

Speaker: Giuseppe Lo Presti

Slides ArchitectureOverview.pdf ArchitectureOverview.ppt

3 Planning & Resources

Speaker: German Cancio Melia

Slides PlanningAndResources-jh.pdf Slides

Wednesday 7 June

Description of Components

Functionnal description of main components of Castor : stager, catalogs, ...
Current status with respect to what is needed
Technology choices
Interfaces to different implementations (xrootd, ...)
Optimisations planned

4 Functional description and status

Slides

• FunctionalDescription.pdf
• FunctionalDescription.pdf
• Slides

10:30 break

5 Technical design I - Technology choices (DB, code generation, UML, ...)

Speaker: Sebastien PONCE

Slides Slides TechnologyChoices.pdf

6 Technical Design II - CASTOR Core Framework

Speaker: Giuseppe LO PRESTI

Slides Slides TechnicalDesign-Core.pdf

7 Protocols, clients and APIs

Speaker: Sebastien Ponce

Slides Slides

12:30 lunch

Software Process

1. Project admin and technical management; process for assessing progress towards reaching objectives, use of metrics.
2. Process for collecting requirements. Mechanisms for communication amongst developers, with other facilities and with users.
3. Process for setting up and maintaining the project software databases and repositories, where the documents, tools and libraries are stored.
4. Configuration management process, build/release procedure, tools. Integration in the operational environment.
5. Test and certification procedures, use of tools, choice of test cases
6. Dissemination and user feedback

8 Project Management Summmary

Speaker: German Cancio Melia

Slides ProjectMgmtSummary-jh.pdf Slides

9 Requirements, intra-project communication & software repositories

Speaker: Sebastien Ponce

Slides Slides

10 Configuration management, build & testing procedures

Speaker: Giuseppe Lo Presti

Slides ConfigMgmt.pdf Slides

11 Dissemination & User Feedback

Speaker: Jan van Eldik

Slides Castor_review_-_Dissemination_and_User_Feedback.pdf Slides

16:00 break

Service Infrastructure

Process for identifying, setting up and maintaining computing resources on which Castor service runs.
What is required for a single Castor instance (stager, message logger, ...)
What servers are provided.
How these are seen by the database people
(interesting question here is whether to pay for Oracle certified hardware, RedHat certified h/w or just generic systems)

12 Hardware requirements for a Castor instance

Speaker: Jan van Eldik

Slides Castor_review_-_Hardware_requirements.pdf Slides

13 Considerations for Database Servers

Speaker: Eric Grancher

Slides dbservers-07.pdf Slides

19:00 Review Dinner

Thursday 8 June

Deployment and Operation

Information on operational experience
Performance measurements
- Stability and reliability
- coverage 24x7, response times etc
Performance of database components as seen by those running database services
Comparison with Quality of Service requirements as defined in MoU
- What was/is in place for Castor1
- What is in place for Castor2
Integration of castor2 vs castor1 with rest of [FIO] services

14 Operational Experiences

Speaker: Jan van Eldik

Slides

• Castor_review_-_Operational_experiences.pdf
• Castor_review_-_Operational_experiences.pdf
• Slides

15 Castor 1 Operations Infrastructure

Speaker: Olof Barring (on behalf of Tony Osborne)

Slides Castor_Monitoring.pdf Slides

16 Tape Service Operations

Speaker: Vlado Bahyl

Slides CASTOR-2006-review-TapeOperations-VladoBahyl.pdf Slides

10:30 break

17 Castor 2 Operations Infrastructure & Integration

Speaker: Miguel Marques Coelho dos Santos

Slides Slides

18 DB Server performance

Speakers: Eric Grancher, Nilo Segura

Slides CastorReviewDBPerformance.pdf CastorReviewDBPerformance.ppt

19 System Performance & Reliability

Speaker: Bernd Panzer-Steindel

Slides BPS_performance+stability_review_castor2_8June06.pdf BPS_performance+stability_review_castor2_8June06.ppt

12:30 lunch

Reports from Castor Clients : a Tier 1 Centre and the 4 LHC Experiments

Report from a Tier 1 centre using Castor. Experience of deploying and using Castor outside CERN (e.g. CNAF)

Reports from the 4 LHC experimments on their experience with Castor, statements of prioritised needsw.r.t. functionality and performance, timescales
- ALICE
- ATLAS
- CMS
- LHCb

20 LHCb Experiences

Speaker: Andrew Smith

Slides LHCbCastorReview.pdf LHCbCastorReview.ppt

21 ALICE Experiences

Speaker: Latchezar Betev

Slides ALICE_C2_review.pdf ALICE_C2_review.ppt

22 ATLAS Experiences

Speaker: Luc Goossens

Slides

• C2reviewATLAS.pdf
• C2reviewATLAS.pdf
• C2reviewATLAS.ppt

16:00 break

23 CMS Experiences

Speaker: Nick Sinanis

Slides CMS-Castor2.pdf CMS-Castor2.ppt

24 CNAF experiences

Speaker: Pier Paolo Ricci

Slides CNAF-Experiences.pdf Slides

Friday 9 June

Closeout Session

Review committee to meet, prepare and deliver presentation giving preliminary findings and recommendations of the review.

25 Meeting of Referees (closed)

Time for committee to prepare a statement of its findings

26 Findings of the Review Committee

The committee will deliver its findings. This will also be opportunity for discussion to provide missing information and to correct misunderstangs before the final review document is prepared. Place CERN