On 2018-09-13 14:04, hugo.lar...@yahoo.com [firebird-support] wrote: > Hi Mark, > > Thank for the explanation. > > What about restoring (GBAK) both databases at a particular moment then > they should be even "physically" identical at that moment? At this > moment it's level 0. > But then you have tell the source db where level 1 starts. Maybe by > inserting something in RDB$BACKUP_HISTORY?
Not necessarily, you'd have to rely on a gbak restore to be fully deterministic on a byte level, and that is not guaranteed. Consider restores with different page sizes, but even different ICU versions, OS/platform differences, and other things might lead to the same logical data to have slightly different on disk layout. > My strategy is to never repeat level 0 and increment level every third > day. Have done this for a while and it seems to work. Do you mean you increase the back up level continuously? Mark
