Status Report of the RD45 Project

Table of Contents

Status Report of the RD45 Project

RD45: Project Goals

The RD45 Collaboration

Project Stages

Phase 1

Phase 1 - Conclusions (LCRB Refs)

The Prognosis

Phase 2 - Detailed Prototyping

HepODBMS

ODBMS usage in HEP

Milestones (April 1997)

Agenda for April 28-30 Workshop

M1: Reconstruction, Simulation, Analysis

Scalability

Requirements

Reconstruction

Analysis

M1: Conclusions

M2: End-User Issues

Collections

Naming

Meta-Data

Schema Handling

Schema Handling Requirements

M2: Conclusions

M3: CMS Test-Beam

CMS H2 Test-Beam

CMS Test Beam Configuration

M3: Conclusions

Recommendations

Why Replicate?

Replication Tests

Replication With Many Images

Replication: Problems

Possible Replication Milestones

Mass Storage Interface

Interfacing Objectivity/DB to HPSS

PPT Slide

HPSS Performance Measurements

Control & Data Flow

Objy-HPSS Interface

Possible Objy-HPSS Milestones

ODBMS Evolution

ODBMS Trajectory Analysis

PPT Slide

ODBMS Alternatives

Limits of Versant Architecture

Advantages of an ODBMS for Analysis

ODBMS-based Analysis: Advantages

Data Rates Into Objectivity/DB

Data Rates Continued

Guide for non-Experts

Storage Hierarchy vs User View

ODBMS-Based Applications

Project Stages Revisited

Futures

Outstanding Issues

Proposed Milestones: Production

Proposed Milestones: R&D

Conclusions

Email: Jamie.Shiers@cern.ch

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