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UK GridPP Testbed Rollout
John Gordon
GridPP 3rd Collaboration Meeting
Cambridge
15th February 2002
Outline
Summary of EDG TB1
Summary of site experiences
Rollout of Grid in the UK
as proposed by GridPP Technical Board
John Gordon - PMB- n° 2
Summary of EDG TB1
Doesn’t really work yet
so you’re not missing out.
Version 1.1.0 just out
version 1.1.1 will released outside CERN on Wed20th
Composition of testbed will be frozen Friday 22nd
EU demo will be CC-IN2P3, CERN, CNAF, NIKHEF, RAL
until 4th March
Important that UK makes this cut for EU demo
After 4th March, get as many UK sites into testbed1 as we can
John Gordon - PMB- n° 3
Summary of site experiences
some sites have tried Globus
Some have tried EDG
Some have had success with some components
obviously keen people in the community
John Gordon - PMB- n° 4
Rollout of Grid in the UK
Endpoint is to have all GridPP and associated sites participating
in a series of overlapping grids.
But need to achieve this by a number of steps
1 rollout EDG Testbed to as many sites as possible
not necessarily everyone, everywhere
2 implement infrastructure for US experiments
3 allow access to other resources
The rollout covers first and subsequent installations
John Gordon - PMB- n° 5
3 Categories of Site
1 Core
2 Friendly tester
3 User-only
John Gordon - PMB- n° 6
Core
At the sharp end
Based on sites with WP6 effort
Takenew releases, test and make them foolproof, well
documented
to WP6 to improve the distributions and
feedback
documentation
not exclusive list, commitment to help others
John Gordon - PMB- n° 7
Friendly testers
Less formal commitment than core sites
Wish to have latest software but probably not as painlessly as
cat 3
Coresites will test their procedures and documentation on
these sites
John Gordon - PMB- n° 8
User sites
They will join and use the testbed as a production service.
Theydon’t have the effort to be part of the development but
need the grid for their users.
Theyshould see the grid as a service, including the installation
and updates
Includessites that are not part of GridPP but we want to use
their resources (eg eScience Centres)
This category is the target of TB work and this plan.
John Gordon - PMB- n° 9
Sites can be in multiple categories
e.g. Manchester may be a core site
but their BaBar facility might be a friendly site
while their D0 cluster could be a user site
John Gordon - PMB- n° 10
Support of Friendly Sites
mailing list to share expertise
expect problems
debug documentation
John Gordon - PMB- n° 11
Support of User Sites
The aim is
single point of contact
good documentation in one place
wider pool of expertise
John Gordon - PMB- n° 12
Issues
When will we be ready to start?
EDG TB1.1 will show
core sites March 4th
Keeping up with EDG releases
What do we need for our Grids?
John Gordon - PMB- n° 13
What do we need for our Grids?
Information Servers -RAL
Resource Brokers – IC
GridPP Virtual Organisation – LDAP server
Authorisation
Example (BaBar)
John Gordon - PMB- n° 14
Tasks
One-stop instructions
Based on WP6 plus improvement and UK-specific
Vetting procedure
GSC
Validation tests
Match experiments and sites
John Gordon - PMB- n° 15
Testbed Rollout
Rollout ‘core’ testbed round core of WP6 people and sites
Bristol, Imperial, Manchester, RAL, +??
Other sites can join core, but price is they provide support to
others
WP6 people are paid to do this anyway
Thiscore of people will have different skills and cover
different areas but will cover for each other to provide ‘best
effort’ support for
new sites joining
new releases of grid software
John Gordon - PMB- n° 16
Other Issues
Extra core sites? Single set of instructions
Also involve UK WP contacts Single point of contact
(Glasgow/WP2, Liverpool/WP4?)
UK management
Support
Verification – joining the grid
Rollout procedure
EDG, UK Grids
Development grids (see paper)
WP6 role
UK added value
John Gordon - PMB- n° 17