We may run 24/7 in the near future and there is one issue that I know we need to resolve. Currently to refresh a Development or Testing environment we will simply copy the data files from Production. We have had problems on occasion with this because during the copy process a CDX or FPT may have been already copied, then a different large file gets copied, and in the meantime the DBF changes due to editing. The CDX, FPT and DBF are now out of sync. At this moment we can simply do it at night or over the weekend when the system is likely not active, but how to do this when it is?