RAL Tier1 weekly operations castor 29/04/2016

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AD discussion>>>>

batch farm > 10k job slots on farm (15 > 26k)

most throughput from fts

batch farm & fts about equal number of files

CMS throttled - 1200 job slots (direct IO) - 1200 as it works, MoU should be 3k

Atlas - fair share 7-8k jobs ... pos prev max load + 20%?

LHCb - ok at the moment

Alice use farm (quite significant) but dont really use castor

Non LHC vos - mostly going to tape as 'archive' >>> will probably go to echo

2 defn of efficency success/total or cpu time/wall time - CMS raising issues with both


AP - come up with all potential solutions even if ££££

  • 2014 disk serevrs can be put into castor - poss cms .. for IO throughput

reduce the number of drives used (castor partitions) on above machines

atlas log files could be put onto echo

find prob workflows

get echo working

second raid in hardware

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