Generally smooth operations - job efficiencies are good again. Long read times for jobs need to be checked - the data for these jobs was being read from Offsite (not just premix libraries but primary datasets). These jobs are primarily Processing jobs reading data from CERN, which has always worked well in the past but seeing such high input data read times is unusual. 

SAM tests on Antares were failing due to EOS node hardware failure, and the test files were not in the correct place. Production was unaffected, but still CMS put us into 'Rucio drain' which we are yet to escape. Tom Byrne asked Katy to have the SAM test files retransferred on Monday. Katy performed the 'declare bad' procedure on Monday afternoon. This has removed the replica according to Rucio, but because we do not run the reaper on tape sites (except during tape deletion campaigns) the file was probably never removed. Therefore when the Antares team "re-enabled this morning the antares-eos01 filesystems as read-only" on Tuesday morning, the tests went green again. In the meantime the new copy of the SAM test files cannot reach RAL because we are in Rucio drain. I am now trying to persuade CMS to remove us from Rucio drain...

Also CMS went into production job drain, so we have picked up a lot of User Analysis jobs, but I have this morning re-enabled Production. CMS have been running a large proportion of the farm since the weekend. 

Mention again the proposed metadata tape challenge.