How to increase Firebird backup and restore speed (up to 30%)

It seems that many Firebird developers and administrators are not aware about  command line switch -se[rvice] for gbak.exe

-SE[RVICE] <servicename>

This switch causes gbak to backup a remote database via the service manager. This causes the backup file to be created on the remote server, so the path format and filename must be valid on the remote server. The servicename is currently always the text service_mgr.

here is the rest of the article in Eglish

also there is an Italian mention in blogosphere