On 13-9-2018 23:05, hugo.lar...@yahoo.com [firebird-support] wrote: > > >> Do you mean you increase the back up level continuously? > > Yes > My strategy is: > Level 0 once. > Increment level continuously every third Day. > > Works fine most of the times. Sometimes I get mysteriously the following > error even though my logs tell that the order is right. I suspect there > might be an old bug in NBAK in version i'm using 2.5.3.26778 > > Invalid level 6 of incremental backup file: > /home/firebird/store_fdb/2058/unzip_nbak/N0006_201807 > 29_1000.nbk, expected 1 [SQLState:HY000, ISC error code:335544382] > > Whe n this happen I just step back one level. > > NBAK backup is done with Jaybird. > > It would be really cool if N backups can be reused when we migrate to FB4.
That is not possible given the ODS change between FB3 and FB4. Mark -- Mark Rotteveel