1. Database Readiness Workshop Intro & Goals
Dirk Duellmann, CERN IT & LCG

2. LCG Database Deployment Plan
After last workshop a database deployment plan has been presented to LCG GDB and MB
Two production phases
March - Sept ‘06 : partial production service
Production service (parallel to existing testbed)
H/W requirements defined by experiments/projects
Based on Oracle 10gR2
Subset of LCG tier 1 sites: ASCC, CERN, BNL, CNAF, GridKA, IN2P3, RAL
Sept ‘06- onwards : full production service
Adjusted h/w requirements (defined at summer ‘06 workshop)
Other tier 1 sites joined in: PIC, NIKHEF, NDG, TRIUMF
Database Readiness Workshop - Intro & Goals
Dirk Duellmann

4. LCG Application s/w Status
COOL and POOL have released versions based on CORAL
Includes re-try and failover required for reliable db service use
These features need be tested for experiment
POOL includes production version FroNTier plug-in
Control of SQUID caching may still be required to implement more realistic caching policies
These releases (or bug fixes) are target for 2006 deployment
LCG s/w expected to be stable by end of February for distributed deployment as part of SC4 or experiment challenges
Caveats:
COOL still has important functionality items on the development plan for this year
Conditions schema stability will need careful planning for COOL and FroNTier
Database Readiness Workshop - Intro & Goals
Dirk Duellmann

5. Coming up during the year
Discussion with BARC and LFC team on LFC based implementation of a database lookup service
Work plan proposal aiming at a working prototype by end of April
Until summer: xml based catalogs for resolution of logical database connections
Security and LCG certificate integration
No real progress in this area - asked Oracle to confirm their support for proxy certificates
Need working solution (or fallback) by summer!
Database Readiness Workshop - Intro & Goals
Dirk Duellmann

6. This workshop Readiness of the production services at T0/T1
status reports from tier 0 and tier 1 sites
technical problems with the proposed setup (RAC clusters)?
open questions from sites to experiments?
Readiness of experiment (and grid) database applications
Application list, code release, data model and deployment schedule
Successful validation at T0 and (if required T1)?
Any new deployment problems seen by experiment users which need a service change
Define site/experiment milestones for database project plan
(Re-)align with other work plans - eg experiment challenges, SC4
Report will be given to pre-CHEP workshop
Database Readiness Workshop - Intro & Goals
Dirk Duellmann

7. Workshop Scope Define LCG Database service at Tier 0 and Tier 1
H/w and s/w setup at both tiers
Data replication/distribution techniques between tiers and database users (streams and frontier)
Not all projects and sites will be represented today
Grid Middleware and Castor
Will present plans during upcoming pre-CHEP workshop
LFC, FTS, VOMS - LFC and VOMS replication plans?
Castor - local site services
ASCC
Clash with local vacation period, need to strengthen contact
Database Readiness Workshop - Intro & Goals
Dirk Duellmann

8. Application Deployment Tests & Conclusions
Still quite a few tests are ongoing
Online -> Offline -> Tier 1
Service and access pattern validation tests will need to continue
Eg after requirement, software or service changes
Should keep the 3D test bed setup available
Can we conclude on “replication technology tests”?
Propose to prepare Streams and FroNTier write-up
Will ask for input from people responsible for tests
Proposed target for completion: summer workshop
Database Readiness Workshop - Intro & Goals
Dirk Duellmann