Controls Software Migration

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Controls Software Migration Duplex Consoles
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Introduction

• Goal of the Migration
• Move the accelerator controls system from Vax/VMS
  to PC/Linux
• Phase I
• Console infrastructure including CLIB
• Nearing completion
• Phase II
• Console applications and user libraries
• 820 applications
• At this stage 60 tested plus 400 compiled

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Migration Constraints

• Expect the migration to take time ( ? year )
• Allow application development to continue
• Avoid maintaining two versions of an application
• Put applications into production as soon as they
  have been ported and tested
• Be able to run both VMS and Linux applications
• Automatically choose the best version
• Linux version if tested and certified
• otherwise VMS version

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Solution Duplex Consoles

• A Linux and a VMS console running together and
  talking to each other
• In default best mode will run the correct
  flavor version of an application
• In debugging modes the user can select a
  particular version
• Needs to be distributed throughout the division

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Requirements (Windows PC)

• Exceed version 7 or 9
• X-windows server
• 25 of division have version 8
• Upgrade to version 9 cannot be done remotely
• Necessity of Exceed 7 upgrade not ruled out
• 50 of division
• Exceed customizations
• Startup script for duplex windows
• Startup script for Linux terminal sessions
• Can be pushed out remotely

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Exceed 8 to 9 Upgrade

• 80 Consoles need to be upgraded
• A team of 3 competent system administrators will
  install the upgrade
• Controls dept. will schedule a time with users
• The users will be expected to make their machines
  available at that time
• If difficulties are encountered the upgrade will
  be deferred until controls dept. experts can
  resolve the problem

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Install New Customizations

• Will be pushed out remotely when ..
• All known duplex consoles bugs are fixed
• All Exceed 8 users are upgraded
• Documentation is complete
• All users have been notified of the transition
  and referred to the appropriate documentation
• VMS only consoles will be disabled once the
  transition is complete

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Special Cases

• Specific documentation is being prepared for
• Non Exceed users
• Home computers (a CD is being prepared)
• Mac users