The backup solution would obtain an exclusive lock on all the files in the Store folder to ensure that the database indexes and memo fields are consistent with the database. Working Papers and Tracker only open database files when needed (i.e. when idle or no open connections to databases are maintained). However, in a large firm, it may be difficult to time the backup while no users are accessing the Data Store. For this reason, we recommend that the backup be timed to occur when it is unlikely that users will be actively accessing the store.