Global accelerator network TTF

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Global accelerator network_at_TTF
Raimund Kammering DESY MVP TTF2 Review Meeting
at Salzau, 20.-22. January 2003
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Overview

• Motivation for a GAN
• Implementation _at_ TTF1
• Making the next step TTF2

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Why do we need a GAN?

• Build a (big) project within an international
  collaboration
• effectively use of world-wide competence, ideas
  and resources
• maintain and foster the centers of excellence in
  accelerator physics around the world
• Challenges
• how to develop trust between people and cultures?
• how to keep the people involved and responsible?
• how to communicate and distribute the
  information?

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What is a GAN?

• Remote operation
• Remote solving of problems
• Remote improvements/developments/measurements
• Share information and documentation
• Remote meetings/conferences

collaborative work
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Requirements for remote operation

• Network security (firewall, port filter, SSH,
  https)
• Machine protection system (interlock sys.)
• Common control system interface
• Access to all devices and data (diagnostics,
  resets)
• Electronic logbook
• Video conferencing (shift turnover meetings)
• Operator training

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Remote operation (security)
Remote Terminal X-Window Web Browser
Somewhere in the world
SSH
Web
Firewall Port filter
Accelerator site
Server for Applications eLogBook
Front-ends
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Experience with remote operation _at_ TTF
Home, Office
Milano, Roma
Paris
Chicago
Hamburg
Berlin
INFN
Saclay Orsay
BKR
Fermilab A0
PITZ
TTF
TTF DESY (Hamburg)
A0 Fermilab
PITZ DESY (Berlin)
Facility to control
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The electronic logbook

• Is a must for doing remote shifts
• Involves more people into the daily operation
• Can be the common place for all measurement
  results
• Is accessible from everywhere at every time

An e-logbook is an important tool for a GAN!
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The TTF eLogBook
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The TTF eLogBook
The world wide web
Gather information and status
Home
Accelerator site
Accelerator
Comment
Office
Interact
Make inputs
Operator
Location x
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The TTF eLogBook (cont.)

• Has gained a high acceptance
• Already triggered some contributions (H1)
• Designed as an open tool (is extensible)
• Is the common place for all measurement results

Has proven to be a good GAN tool!
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Video tools _at_ TTF

• First experience with MS Netmeeting (shifts)
• - Bad audio quality
• - Only point to point connections possible

We need a better video tool!

• Some test with VRVS have been done (conference)
• Good audio quality
• Multicast connections possible

13
Making the next step TTF2
The control system

• DOOCS provides all tools necessary to do remote
  operation
• We have good experience with remote shifts and
  maintenance
• We need to provide also access to the long term
  data (DAQ) to the world (talk of K. Rehlich)

DOOCS is a adequate control system in the sense
of a GAN
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Making the next step TTF2
The electronic logbook

• Shows that the web technologies can really help
• The use of these web techniques will be extended
  to offer more information general error and info
  service (poster of O. Hensler _at_ PCaPAC 2002)

Web services have proven be the adequate
technique for delivering information/documentation
in the sense of a GAN
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Making the next step TTF2
The video systems

• General technique fulfills our needs
• Different systems have to be evaluated
• Techniques have to be improved, users have to get
  used to these new systems

We will have to work on this area to establish
the functionality we need
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DAQ _at_ TTF2
The TTF2 DAQ system as an example for a
collaborative GAN work

• As already stated in the talk of K. Rehlich do we
  need a DAQ to further improve and develop the
  accelerator
• Such a DAQ system brings up some new challenges
  in terms of the huge amount of data

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DAQ _at_ TTF2
User GUI (ROOT)
Filter, configure
Orbit server
DAQ
max 50GB/day
Disk backup
Shared memory
possible 8TB/day
dCache tape storage
ADCs 800 channels
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DAQ _at_ TTF2

• This huge amount of data is in the range of an
  average HEP experiment (H1 110 GB/day)
• Here we could learn from the experiments

We established a collaboration with Ohio
State/Cornell/Zeuthen
Work in such a collaboration can only be done in
the sense of a GAN
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The end
Thanks for your attention!
Refs DOOCS http//tesla.desy.de/doocs
eLogBook http//ttfinfo.desy.de/TTF TTF
GAN http//tesla.desy.de/doocs/GAN