Hello, on the paper nbackup look wonderfull, but what are behind the wood that we need to know ?
for exemple i see that during the backup, the database file is locked and all write are done in a separate delta file ... is this can slow down the server ? especially when the separate file is merge back with the database file ? what happen if for exemple we increase the width of one varchar column during the backup ? also i not understand the level strategy, in the doc they say we will rarelly go beyong level 3 or 4 but me what i want to do is to save on a daily basis ... so for me it's will be 30 levels min (because every month i will reset)... what wrong in this ? and to finish how nbackup can know what was changed from the last backup ? does it's mean that every page in the database file have a version number ? thanks for all stéphane
