Supporting RH5 and RH6 for Control and Correlator

Attendees

• Andy Hale
• Ralph Marson
• Alexis Tejeda
• Rachel Rosen
• Akeem Wells
• Rodrigo Amestica
• Jay Perez

Agenda

Requirements

• Correlator
  • ALMA 2015.8 - will be moving to RH6 in Dec 2015
  • Should move to RH6 before that in the CV STE
  • A certain version of ACS and intlist
  • So the STE would be in a permanent state of RH6, but the diskless machines could boot to RH5
  • An environment to run Cycle 3 software in RH5, for testing and debugging
  • Multiple users, in different environments, simultaneously on the CV STE
  • Alexis believes it is doable, but will take some time
  • Rachel suggestion: can we keep some of the machines permanently as RH5 machines? Are there enough?
  • Alexis suggests that there be a RH6 machine which hosts a RH5 VM. Rodrigo agrees this is the way to go.
  • What about an official image of RH6? We don't have one, as far as we know
  • Use GIS as the place to test the installation of RH6
  • Testing on one machine ~1 week
  • Getting things running operationally ~2-3 weeks

• Control
  • Basically running one STE at RH5 (hold it back from upgrading, run Cycle 3 software on it for roughly the next 12 months), the other STE could be moved to RH6 for test team testing
    • Move the chosen STE to RH6 in December 2015/Jan 2016
    • Ralph does not necessarily need an RH6 STE, so for him the priority is to keep an STE at RH5

Action Items

• Find an initial RH6 image to be used. (Andy to contact Tzu)
• Pick the test machine at the NTC (GIS) to be used to install RH6 on (Rodrigo)
  • in my view the good candidates are gas03 and gas04. They do not have a very specific role at this moment within the STE. They both are:
    • Dual Core AMD Opteron(tm) Processor 275
    • 4 GB RAM
    • 20 GB Hard Disk (at this moment 2.6.18-194.32.1.el5PAE)

Schedule

• Get a RH6 image by Sept 11th, for correlator testing
• Get a RH 6 test machine up and running for pre-testing (GIS machine) by Sept 18th
  • This entails having RH6 hosting RH5 VM, and be able to remotely boot
• Ensure that the STE in Socorro that will be held back has a regularly updated copy of the cycle 3 software by Oct 5th.