Subject RE: [firebird-support] gbak question
Author Svein Erling Tysvær
>And if it's not OK, how do I then best go about restoring a running

I'll read this as meaning 'How do I ascertain minimum down time when restoring?', not 'How can I overwrite my database without losing what is currently being modified?'

Simply restore your database to a new file, and then - when finished - shut down the original database, rename and bring the database online again. Less than ideal if you require true 24*7, but if your system may survive one minute offline (and that it is OK to put back an old copy rather than the latest data), then it should be OK.