Activating a Shadow (Firebird)

The switch for activating a shadow when a database dies is –ac[tivate]. The syntax is

gfix -ac

Suppose the shadow’s first volume, employee.sh1, is in a directory /opt/
dbshadows. You would activate it with this command:

./gfix -ac /opt/dbshadows/employee.sh1

Manuales sobre Firebird
Hacer restore o backup

Validar una base de datos firebird
Asegurar una base de datos firebird