John noticed that some of the new EX VAC channels could not be minute trended back past 29th February. This is because the minute trends were offloaded from h1tw1 on that day. Similar to the renaming of the min trend files from their old HVE names to their new H0:VAC names on the running system, this was also done on the minute trend archives on h1fw0 and h1fw1 for all past data.