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1. the current xrootd cluster capacity is not enough to handle both FTS and WN load

   1. mitigation: keep gw4-7 in the cluster, resulting in a total cluster capacity of 21 gws

   2. failover: roll back the blacklist

2. batch farm shows errors when taken out of the sandbox

   1. mitigation: this can be done in phases, taking out one WN initially to ensure proper behaviour, then 1/2 then all of the farm

   2. failover: the workers are put back in the sandbox

Further concerns: