Upgrade the Phoenix Cluster to LCG 2.7

The cluster upgrade is scheduled for March 22nd 14.00 - March 24th 18.00. If all goes well, we will not need the full length of this downtime.

The intervention will need to also upgrade the kernel, see KernelUpdate.

Documentation

Details for how all the upgrade will have to be performed can be found here on http://lcg.web.cern.ch/LCG/Sites/releases.html

The following documents are relevant:

  • Release Notes (plain text file)
  • LCG2 Manual Upgrade Instructions (pdf, html)
  • LCG2 Manual Installation Instructions (pdf, html)
  • LCG2 Testing of a site (pdf, html)
  • LCG2 User Guide (pdf, html) gives detailed information on how to use the middleware and has some insights also into site configuration
  • Upgrading a Classical SE to a DPM - this is exactly what we need to do with our SE

Other interesting documentation

Upgrade Plan

The upgrade has to start with the KernelUpdate on all nodes. Then the tasks are, in sequence

  • Define the nodes to be used for VO Boxes. New nodes may need to be allocated.
  • Define nodes for the Grid Services
  • Perform upgrade according to the instructions on all nodes
  • Perform upgrade of specific services on Grid nodes
  • Perform DPM installation according to documentation
  • Re-Check site configuration
  • Execute Test suite

-- PeterKunszt - 20 Mar 2006

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Topic revision: r2 - 2006-03-21 - PeterKunszt
 
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