Hi,
You would need to create the same amount of nats for your backup interface as well, for eg:
static (inside,outside) 2.2.2.2 10.1.1.1
static (inside,backup) 1.1.1.1 10.1.1.1
Similarly you would need to create it for the rest of the statics as well, to provide redundancy to the network.
Hope that helps.
Thanks,
Varun
Thanks,
Varun Rao