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Scheduled Maintenance on 2012-09-18

On Tuesday 18th of September we will go into Scheduled Downtime. It will last from 9:00 to 18:00, but we will return to operation as soon as we finish.

As usual, CMS and Atlas queues will be closed 24 hours before the maintenance, and LHCb queue will close 48 hours before the maintenance.

Summary of interventions

We will perform the following operations on the cluster:


Reinstall WNs with UMD

  • Description: about 3/4 of the cluster is still running gLite 3.2 middleware on the compute nodes. UMD has been tested in a few nodes for a few weeks already, and it's working fine.
  • Affected nodes: wn[01-43]
  • Notes:

Enable GridFTP doors on IBM IO nodes

  • Description: Thors need to be shut down, so therefore we need to enable the gridftp doors in the IBM nodes.
  • Affected nodes: se[01-08]
  • Notes:

Fix MultiPath on FC links

  • Description: MultiPath Fibre Channel links are not properly working in High Availability mode. We need to stop them to fix it.
  • Affected nodes: se[01-08]
  • Notes:
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Topic revision: r2 - 2012-08-30 - PabloFernandez
 
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