At a particular node of a storage service to which connections have been established on behalf of one or more clients, respective workload indicators are collected from a set of peer nodes of the storage service. In order to provide advantageous process conditions it is proposed that the rates of oil flow andor the oil pressures in the branch lines are measured and temporal changes to said operating parameters are evaluated for monitoring the bearing. The T-wave oversensing analysis may include, for example, identifying beat runs within the cardiac episode whether the beats within the run have at least one characteristic that alternates beat to be or clustering beats within the cardiac episode based on beat to beat interval length. The first radially separated electrode is arranged so as to be apart from the second radially separated electrode. The rollers may be tapered rollers, and may be live rollers.