|DMS containers (both file containers and raw device containers) which are |added (during tablespace creation or after) or extended are now done so in |parallel through the prefetchers. To achieve an increase in parallelism of |these create / resize container operations, one can increase the number of |prefetchers running in the system. The only process which is not done in parallel |is the logging of these actions and, in the case of creating containers, the |tagging of the containers.