A state database is the collections of multiple,

replicated database copies and each copy is considered as a

state database replica.

If the solaris box loses a state database replica, SVM

should figure out which state database replicas still

contain valid data and boot using the valid ones and this

is achieved by using “majority consensus algorithm” and

according to this algorithm we need half+1 number of state

database replicas before it finds for a valid data.

And for the above reason we need to recreate at least three

state database replicas when we setup a disk configuration.

If all the three database replicas are corrupted meaning we

lose all data stored on svm volumes.

Hence its good to create as many replicas on separate

drives across controllers.