Upd:SuperMUC/MIG: Interruption of operation due to integration of the fat node island

[LRZ aktuell]

 Changes to this message: Update
Update: SuperMUC's thin islands are back to normal operation. The fat
 island will follow next week.
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 Update: The SuperMUC interruption has been prolonged from 2 to 3 days.
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 Dear users of SuperMUC and the migration system supzero,
 
 we are now (with considerable delay) preparing to integrate the
 migration system supzero into the SuperMUC system. In order to complete
 the integration work, both SuperMUC and the migration system will
 require scheduled maintenance phases:
 
  1. On July 16, 08:00, SuperMIG (supzero) will be shut down. Two weeks
     later, it will return as SuperMUC's fat-node island. During this
     period there will be no user operation on this part of the system.
  2. From July 17, 08:00 to July 19, 18:00, SuperMUC will not be
     available for user operation, too.
 
 Please note that any LoadLeveler jobs on supzero that have not
 completed when the maintenance starts will be lost. After the
 maintenance, the fat node island will use the same Loadleveler
 instance, operating environment and GPFS file system as presently
 available on SuperMUC.
 
 Details on the changes in using the fat island as well as how to deal
 with the existing data on SCRATCH and WORK will be separately
 published; the system documentation will be accordingly updated.


 This information is also available on our web server
 http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4619/

 Reinhold Bader