I know that during normal use, the WAN Acclerator will read from the target repository if the required block doesn't exist in the WA Cache, before transferring the block across the WAN.
I have 2 questions about this behaviour:
1. Does this mean that if you run an active full, the bulk of the data will be copied locally at the target end?
2. Could this behaviour be used if a unencrypted seed has been done and then you wish to enable encryption without having to either reseed or copy everything over the WAN?