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Previous preparatory work for PhaseC migration

Administrative work

  • DONE Create a new entry in twiki with details from maintenance days.
  • DONE Inform Users on migration plan - target: 30/03/2010
  • DONE Take downtime window for 14/04/2010 12:00 UTC - 19/04/2010 12:00 UTC
  • ALERT! Fix fabric inventory with new IPs
  • ALERT! Remind VO Representatives to join the chat&test

Xen hosts in production

  • ALERT! Controlled by cfengine
  • ALERT! all hosts [11-17] prepared
  • ALERT! Everything working after reboot:
    • ALERT! Access private networks
    • ALERT! Network config permanent
    • ALERT! Access Lustre

Computing part

  • ALERT! Head nodes working under xen (different names when needed)
    • DONE lrms02
    • DONE ce02
    • DONE ce11 (will be replaced by ce01)
    • ALERT! arc02
    • ALERT! cream02
  • DONE Integrate Lustre on CE's
  • ALERT! rsync experiment software and software VO tags to lustre
  • DONE add CE's to site-BDII (production queues disabled) / add to GOC DB
  • DONE check GStat
  • DONE check GStat 2.0
  • DONE check SAM
  • ALERT! Execute in advance "downtime" script on ce01 to shut off the queues in time
  • ALERT! CPU temperature checks in nagios

Storage part

  • DONE Chimera migration test
  • MOVED TO... Space reservation migration test (can't be done)
  • DONE Prepare Thors filesystems
  • DONE Put Thors [30-39] into production
  • DONE Reboot Thors and check they work
  • DONE Prepare preproduction dCache instance (different names when needed)

Power consumption measurements

  • DONE Ask GPM for placing probes on Worker Nodes
  • DONE Make sure xen03 is measuring before the linpack test

Iloms and inventory

  • ALERT! Change password in ILOMs
  • ALERT! Change names in xen16 and xen17

Other services

  • ALERT! Prepare pub
  • ALERT! Prepare ui64/nagios
  • ALERT! Ganglia
    • DONE WN's
    • DONE lrms02
    • DONE arc02
    • ALERT! se3*
    • ..
  • ALERT! Nagios.lcg
  • ALERT! Backups


  • ALERT! Block password-based auth/access in all machines, allow only private key ssh,
  • ALERT! Make firewall #6929
  • ALERT! strip-down current authorized_keys configurations (eg. at arc01)

-- PabloFernandez - 2010-03-24

-- FotisGeorgatos - 2010-03-25

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Topic revision: r15 - 2011-02-14 - PabloFernandez
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