Hi,
The RAL Tier1 currently has two batch systems:
1) A new farm based on Condor with all WNs running SL6. This contains roughly 50% of our batch capacity. The CEs for this farm were declared as being in production (in the GOC DB) yesterday. In practice this farm has run (although with more limited capacity) for some months and many VOs have successfully run work on it. CEs arc-ce01, arc-ce02, arc-ce03, cream-ce01, cream-ce02 submit jobs to this farm.
2) The older Torque Maui farm still has WNs running SL5. Cream CEs lcgce01, lcgce02, lcgce04, lcgce10 & lcgce11 submit jobs to this farm.
We have announced in the GOC DB a downtime for the upgrade of the WNs in this farm to SL6 with a drain starting tomorrow (Wednesday 2nd October). The upgrade itself will take place on Thursday (3rd October).
We will continue to run two batch farms for some weeks as we gain experience with the Condor farm. Following this we plan to migrate WNs from the Torque/Maui farm to the Condor farm. After that the Torque/Maui farm (and its associated CEs) will be decommissioned.
Gareth Smith.
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