> Alan McDonald wrote:
>
> >>Is it possible to have a realtime copy of firebird database
> >>for backup like mysql replication or similar
> >>not using commercial software?
> >>
> >>
> >>
> i 'have seen shadow, it seem's to be what i need,
> but what i must to do to use shadow file
> Only rename .shd in fdb or something other?
>

just be aware that when using shadow, any corruption in the master is
immediately a corruption in the shadow.
Avoid developing on a database with a shadow active and users connected. And
make sure the shadow is on another physical disk on the server box. Not much
use (makes no sense) if it's on the same disk.
Alan